21204676

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{1091}}^1$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 38342304

約数和(自身を除く): 17137628

約数列:

[1, 2, 4, 43, 86, 113, 172, 226, 452, 1091, 2182, 4364, 4859, 9718, 19436, 46913, 93826, 123283, 187652, 246566, 493132, 5301169, 10602338, 21204676]

約数ペア:

[(1, 21204676), (2, 10602338), (4, 5301169), (43, 493132), (86, 246566), (113, 187652), (172, 123283), (226, 93826), (452, 46913), (1091, 19436), (2182, 9718), (4364, 4859)]