21405156

素因数分解:

$2^2\times 3^1\times {\mathrm{151}}^1\times {\mathrm{11813}}^1$

素因数の和:11971

約数の個数: 24

約数和(自身を含む): 50280384

約数和(自身を除く): 28875228

約数列:

[1, 2, 3, 4, 6, 12, 151, 302, 453, 604, 906, 1812, 11813, 23626, 35439, 47252, 70878, 141756, 1783763, 3567526, 5351289, 7135052, 10702578, 21405156]

約数ペア:

[(1, 21405156), (2, 10702578), (3, 7135052), (4, 5351289), (6, 3567526), (12, 1783763), (151, 141756), (302, 70878), (453, 47252), (604, 35439), (906, 23626), (1812, 11813)]