21483875

素因数分解:

$5^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 31409664

約数和(自身を除く): 9925789

約数列:

[1, 5, 7, 25, 35, 43, 125, 175, 215, 301, 571, 875, 1075, 1505, 2855, 3997, 5375, 7525, 14275, 19985, 24553, 37625, 71375, 99925, 122765, 171871, 499625, 613825, 859355, 3069125, 4296775, 21483875]

約数ペア:

[(1, 21483875), (5, 4296775), (7, 3069125), (25, 859355), (35, 613825), (43, 499625), (125, 171871), (175, 122765), (215, 99925), (301, 71375), (571, 37625), (875, 24553), (1075, 19985), (1505, 14275), (2855, 7525), (3997, 5375)]