21588975

素因数分解:

$3^2\times 5^2\times {\mathrm{229}}^1\times {\mathrm{419}}^1$

素因数の和:664

約数の個数: 36

約数和(自身を含む): 38929800

約数和(自身を除く): 17340825

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 229, 419, 687, 1145, 1257, 2061, 2095, 3435, 3771, 5725, 6285, 10305, 10475, 17175, 18855, 31425, 51525, 94275, 95951, 287853, 479755, 863559, 1439265, 2398775, 4317795, 7196325, 21588975]

約数ペア:

[(1, 21588975), (3, 7196325), (5, 4317795), (9, 2398775), (15, 1439265), (25, 863559), (45, 479755), (75, 287853), (225, 95951), (229, 94275), (419, 51525), (687, 31425), (1145, 18855), (1257, 17175), (2061, 10475), (2095, 10305), (3435, 6285), (3771, 5725)]