21041818

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{88411}}^1$

素因数の和:88437

約数の個数: 16

約数和(自身を含む): 38193984

約数和(自身を除く): 17152166

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 88411, 176822, 618877, 1237754, 1502987, 3005974, 10520909, 21041818]

約数ペア:

[(1, 21041818), (2, 10520909), (7, 3005974), (14, 1502987), (17, 1237754), (34, 618877), (119, 176822), (238, 88411)]