21763275

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 37640448

約数和(自身を除く): 15877173

約数列:

[1, 3, 5, 15, 25, 61, 67, 71, 75, 183, 201, 213, 305, 335, 355, 915, 1005, 1065, 1525, 1675, 1775, 4087, 4331, 4575, 4757, 5025, 5325, 12261, 12993, 14271, 20435, 21655, 23785, 61305, 64965, 71355, 102175, 108275, 118925, 290177, 306525, 324825, 356775, 870531, 1450885, 4352655, 7254425, 21763275]

約数ペア:

[(1, 21763275), (3, 7254425), (5, 4352655), (15, 1450885), (25, 870531), (61, 356775), (67, 324825), (71, 306525), (75, 290177), (183, 118925), (201, 108275), (213, 102175), (305, 71355), (335, 64965), (355, 61305), (915, 23785), (1005, 21655), (1065, 20435), (1525, 14271), (1675, 12993), (1775, 12261), (4087, 5325), (4331, 5025), (4575, 4757)]