21204974

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{1801}}^1$

素因数の和:1868

約数の個数: 24

約数和(自身を含む): 37669008

約数和(自身を除く): 16464034

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 841, 1682, 1801, 3602, 5887, 11774, 12607, 25214, 52229, 104458, 365603, 731206, 1514641, 3029282, 10602487, 21204974]

約数ペア:

[(1, 21204974), (2, 10602487), (7, 3029282), (14, 1514641), (29, 731206), (58, 365603), (203, 104458), (406, 52229), (841, 25214), (1682, 12607), (1801, 11774), (3602, 5887)]