21000609184

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:471

約数の個数: 192

約数和(自身を含む): 46663464960

約数和(自身を除く): 25662855776

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 47, 68, 74, 79, 94, 136, 148, 158, 188, 272, 281, 296, 316, 376, 544, 562, 592, 629, 632, 752, 799, 1124, 1184, 1258, 1264, 1343, 1504, 1598, 1739, 2248, 2516, 2528, 2686, 2923, 3196, 3478, 3713, 4496, 4777, 5032, 5372, 5846, 6392, 6956, 7426, 8992, 9554, 10064, 10397, 10744, 11692, 12784, 13207, 13912, 14852, 19108, 20128, 20794, 21488, 22199, 23384, 25568, 26414, 27824, 29563, 29704, 38216, 41588, 42976, 44398, 46768, 49691, 52828, 55648, 59126, 59408, 63121, 76432, 83176, 88796, 93536, 99382, 105656, 118252, 118816, 126242, 137381, 152864, 166352, 176749, 177592, 198764, 211312, 224519, 236504, 252484, 274762, 332704, 353498, 355184, 377383, 397528, 422624, 449038, 473008, 488659, 504968, 549524, 706996, 710368, 754766, 795056, 821363, 898076, 946016, 977318, 1009936, 1043353, 1099048, 1413992, 1509532, 1590112, 1642726, 1796152, 1954636, 2019872, 2086706, 2198096, 2335477, 2827984, 3019064, 3285452, 3592304, 3909272, 4173412, 4396192, 4670954, 5655968, 6038128, 6570904, 7184608, 7818544, 8307203, 8346824, 9341908, 12076256, 13141808, 13963171, 15637088, 16614406, 16693648, 17737001, 18683816, 26283616, 27926342, 33228812, 33387296, 35474002, 37367632, 38604061, 55852684, 66457624, 70948004, 74735264, 77208122, 111705368, 132915248, 141896008, 154416244, 223410736, 265830496, 283792016, 308832488, 446821472, 567584032, 617664976, 656269037, 1235329952, 1312538074, 2625076148, 5250152296, 10500304592, 21000609184]

約数ペア:

[(1, 21000609184), (2, 10500304592), (4, 5250152296), (8, 2625076148), (16, 1312538074), (17, 1235329952), (32, 656269037), (34, 617664976), (37, 567584032), (47, 446821472), (68, 308832488), (74, 283792016), (79, 265830496), (94, 223410736), (136, 154416244), (148, 141896008), (158, 132915248), (188, 111705368), (272, 77208122), (281, 74735264), (296, 70948004), (316, 66457624), (376, 55852684), (544, 38604061), (562, 37367632), (592, 35474002), (629, 33387296), (632, 33228812), (752, 27926342), (799, 26283616), (1124, 18683816), (1184, 17737001), (1258, 16693648), (1264, 16614406), (1343, 15637088), (1504, 13963171), (1598, 13141808), (1739, 12076256), (2248, 9341908), (2516, 8346824), (2528, 8307203), (2686, 7818544), (2923, 7184608), (3196, 6570904), (3478, 6038128), (3713, 5655968), (4496, 4670954), (4777, 4396192), (5032, 4173412), (5372, 3909272), (5846, 3592304), (6392, 3285452), (6956, 3019064), (7426, 2827984), (8992, 2335477), (9554, 2198096), (10064, 2086706), (10397, 2019872), (10744, 1954636), (11692, 1796152), (12784, 1642726), (13207, 1590112), (13912, 1509532), (14852, 1413992), (19108, 1099048), (20128, 1043353), (20794, 1009936), (21488, 977318), (22199, 946016), (23384, 898076), (25568, 821363), (26414, 795056), (27824, 754766), (29563, 710368), (29704, 706996), (38216, 549524), (41588, 504968), (42976, 488659), (44398, 473008), (46768, 449038), (49691, 422624), (52828, 397528), (55648, 377383), (59126, 355184), (59408, 353498), (63121, 332704), (76432, 274762), (83176, 252484), (88796, 236504), (93536, 224519), (99382, 211312), (105656, 198764), (118252, 177592), (118816, 176749), (126242, 166352), (137381, 152864)]