21119804

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{941}}^1$

素因数の和:1157

約数の個数: 24

約数和(自身を含む): 38403456

約数和(自身を除く): 17283652

約数列:

[1, 2, 4, 31, 62, 124, 181, 362, 724, 941, 1882, 3764, 5611, 11222, 22444, 29171, 58342, 116684, 170321, 340642, 681284, 5279951, 10559902, 21119804]

約数ペア:

[(1, 21119804), (2, 10559902), (4, 5279951), (31, 681284), (62, 340642), (124, 170321), (181, 116684), (362, 58342), (724, 29171), (941, 22444), (1882, 11222), (3764, 5611)]