21001568

素因数分解:

$2^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:160

約数の個数: 96

約数和(自身を含む): 50621760

約数和(自身を除く): 29620192

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 53, 56, 58, 61, 106, 112, 116, 122, 203, 212, 224, 232, 244, 371, 406, 424, 427, 464, 488, 742, 812, 848, 854, 928, 976, 1484, 1537, 1624, 1696, 1708, 1769, 1952, 2968, 3074, 3233, 3248, 3416, 3538, 5936, 6148, 6466, 6496, 6832, 7076, 10759, 11872, 12296, 12383, 12932, 13664, 14152, 21518, 22631, 24592, 24766, 25864, 28304, 43036, 45262, 49184, 49532, 51728, 56608, 86072, 90524, 93757, 99064, 103456, 172144, 181048, 187514, 198128, 344288, 362096, 375028, 396256, 656299, 724192, 750056, 1312598, 1500112, 2625196, 3000224, 5250392, 10500784, 21001568]

約数ペア:

[(1, 21001568), (2, 10500784), (4, 5250392), (7, 3000224), (8, 2625196), (14, 1500112), (16, 1312598), (28, 750056), (29, 724192), (32, 656299), (53, 396256), (56, 375028), (58, 362096), (61, 344288), (106, 198128), (112, 187514), (116, 181048), (122, 172144), (203, 103456), (212, 99064), (224, 93757), (232, 90524), (244, 86072), (371, 56608), (406, 51728), (424, 49532), (427, 49184), (464, 45262), (488, 43036), (742, 28304), (812, 25864), (848, 24766), (854, 24592), (928, 22631), (976, 21518), (1484, 14152), (1537, 13664), (1624, 12932), (1696, 12383), (1708, 12296), (1769, 11872), (1952, 10759), (2968, 7076), (3074, 6832), (3233, 6496), (3248, 6466), (3416, 6148), (3538, 5936)]