21208656

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 160

約数和(自身を含む): 68567040

約数和(自身を除く): 47358384

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 34, 42, 47, 48, 51, 56, 68, 79, 84, 94, 102, 112, 119, 136, 141, 158, 168, 188, 204, 237, 238, 272, 282, 316, 329, 336, 357, 376, 408, 474, 476, 553, 564, 632, 658, 714, 752, 799, 816, 948, 952, 987, 1106, 1128, 1264, 1316, 1343, 1428, 1598, 1659, 1896, 1904, 1974, 2212, 2256, 2397, 2632, 2686, 2856, 3196, 3318, 3713, 3792, 3948, 4029, 4424, 4794, 5264, 5372, 5593, 5712, 6392, 6636, 7426, 7896, 8058, 8848, 9401, 9588, 10744, 11139, 11186, 12784, 13272, 14852, 15792, 16116, 16779, 18802, 19176, 21488, 22278, 22372, 25991, 26544, 28203, 29704, 32232, 33558, 37604, 38352, 44556, 44744, 51982, 56406, 59408, 63121, 64464, 67116, 75208, 77973, 89112, 89488, 103964, 112812, 126242, 134232, 150416, 155946, 178224, 189363, 207928, 225624, 252484, 268464, 311892, 378726, 415856, 441847, 451248, 504968, 623784, 757452, 883694, 1009936, 1247568, 1325541, 1514904, 1767388, 2651082, 3029808, 3534776, 5302164, 7069552, 10604328, 21208656]

約数ペア:

[(1, 21208656), (2, 10604328), (3, 7069552), (4, 5302164), (6, 3534776), (7, 3029808), (8, 2651082), (12, 1767388), (14, 1514904), (16, 1325541), (17, 1247568), (21, 1009936), (24, 883694), (28, 757452), (34, 623784), (42, 504968), (47, 451248), (48, 441847), (51, 415856), (56, 378726), (68, 311892), (79, 268464), (84, 252484), (94, 225624), (102, 207928), (112, 189363), (119, 178224), (136, 155946), (141, 150416), (158, 134232), (168, 126242), (188, 112812), (204, 103964), (237, 89488), (238, 89112), (272, 77973), (282, 75208), (316, 67116), (329, 64464), (336, 63121), (357, 59408), (376, 56406), (408, 51982), (474, 44744), (476, 44556), (553, 38352), (564, 37604), (632, 33558), (658, 32232), (714, 29704), (752, 28203), (799, 26544), (816, 25991), (948, 22372), (952, 22278), (987, 21488), (1106, 19176), (1128, 18802), (1264, 16779), (1316, 16116), (1343, 15792), (1428, 14852), (1598, 13272), (1659, 12784), (1896, 11186), (1904, 11139), (1974, 10744), (2212, 9588), (2256, 9401), (2397, 8848), (2632, 8058), (2686, 7896), (2856, 7426), (3196, 6636), (3318, 6392), (3713, 5712), (3792, 5593), (3948, 5372), (4029, 5264), (4424, 4794)]