18838988

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{15647}}^1$

素因数の和:15701

約数の個数: 24

約数和(自身を含む): 38556672

約数和(自身を除く): 19717684

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 15647, 31294, 62588, 109529, 219058, 438116, 672821, 1345642, 2691284, 4709747, 9419494, 18838988]

約数ペア:

[(1, 18838988), (2, 9419494), (4, 4709747), (7, 2691284), (14, 1345642), (28, 672821), (43, 438116), (86, 219058), (172, 109529), (301, 62588), (602, 31294), (1204, 15647)]