21090476

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{3659}}^1$

素因数の和:3805

約数の個数: 24

約数和(自身を含む): 40582080

約数和(自身を除く): 19491604

約数列:

[1, 2, 4, 11, 22, 44, 131, 262, 524, 1441, 2882, 3659, 5764, 7318, 14636, 40249, 80498, 160996, 479329, 958658, 1917316, 5272619, 10545238, 21090476]

約数ペア:

[(1, 21090476), (2, 10545238), (4, 5272619), (11, 1917316), (22, 958658), (44, 479329), (131, 160996), (262, 80498), (524, 40249), (1441, 14636), (2882, 7318), (3659, 5764)]