21319218

素因数分解:

$2^1\times 3^2\times {\mathrm{149}}^1\times {\mathrm{7949}}^1$

素因数の和:8106

約数の個数: 24

約数和(自身を含む): 46507500

約数和(自身を除く): 25188282

約数列:

[1, 2, 3, 6, 9, 18, 149, 298, 447, 894, 1341, 2682, 7949, 15898, 23847, 47694, 71541, 143082, 1184401, 2368802, 3553203, 7106406, 10659609, 21319218]

約数ペア:

[(1, 21319218), (2, 10659609), (3, 7106406), (6, 3553203), (9, 2368802), (18, 1184401), (149, 143082), (298, 71541), (447, 47694), (894, 23847), (1341, 15898), (2682, 7949)]