21723625

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 64

約数和(自身を含む): 35283456

約数和(自身を除く): 13559831

約数列:

[1, 5, 7, 11, 25, 35, 37, 55, 61, 77, 125, 175, 185, 259, 275, 305, 385, 407, 427, 671, 875, 925, 1295, 1375, 1525, 1925, 2035, 2135, 2257, 2849, 3355, 4625, 4697, 6475, 7625, 9625, 10175, 10675, 11285, 14245, 15799, 16775, 23485, 24827, 32375, 50875, 53375, 56425, 71225, 78995, 83875, 117425, 124135, 173789, 282125, 356125, 394975, 587125, 620675, 868945, 1974875, 3103375, 4344725, 21723625]

約数ペア:

[(1, 21723625), (5, 4344725), (7, 3103375), (11, 1974875), (25, 868945), (35, 620675), (37, 587125), (55, 394975), (61, 356125), (77, 282125), (125, 173789), (175, 124135), (185, 117425), (259, 83875), (275, 78995), (305, 71225), (385, 56425), (407, 53375), (427, 50875), (671, 32375), (875, 24827), (925, 23485), (1295, 16775), (1375, 15799), (1525, 14245), (1925, 11285), (2035, 10675), (2135, 10175), (2257, 9625), (2849, 7625), (3355, 6475), (4625, 4697)]