21809565

素因数分解:

$3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4289}}^1$

素因数の和:4413

約数の個数: 24

約数和(自身を含む): 38146680

約数和(自身を除く): 16337115

約数列:

[1, 3, 5, 9, 15, 45, 113, 339, 565, 1017, 1695, 4289, 5085, 12867, 21445, 38601, 64335, 193005, 484657, 1453971, 2423285, 4361913, 7269855, 21809565]

約数ペア:

[(1, 21809565), (3, 7269855), (5, 4361913), (9, 2423285), (15, 1453971), (45, 484657), (113, 193005), (339, 64335), (565, 38601), (1017, 21445), (1695, 12867), (4289, 5085)]