21747750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{107}}^1\times {\mathrm{271}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 54991872

約数和(自身を除く): 33244122

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 107, 125, 150, 214, 250, 271, 321, 375, 535, 542, 642, 750, 813, 1070, 1355, 1605, 1626, 2675, 2710, 3210, 4065, 5350, 6775, 8025, 8130, 13375, 13550, 16050, 20325, 26750, 28997, 33875, 40125, 40650, 57994, 67750, 80250, 86991, 101625, 144985, 173982, 203250, 289970, 434955, 724925, 869910, 1449850, 2174775, 3624625, 4349550, 7249250, 10873875, 21747750]

約数ペア:

[(1, 21747750), (2, 10873875), (3, 7249250), (5, 4349550), (6, 3624625), (10, 2174775), (15, 1449850), (25, 869910), (30, 724925), (50, 434955), (75, 289970), (107, 203250), (125, 173982), (150, 144985), (214, 101625), (250, 86991), (271, 80250), (321, 67750), (375, 57994), (535, 40650), (542, 40125), (642, 33875), (750, 28997), (813, 26750), (1070, 20325), (1355, 16050), (1605, 13550), (1626, 13375), (2675, 8130), (2710, 8025), (3210, 6775), (4065, 5350)]