21796838

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{81943}}^1$

素因数の和:81971

約数の個数: 16

約数和(自身を含む): 39333120

約数和(自身を除く): 17536282

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 81943, 163886, 573601, 1147202, 1556917, 3113834, 10898419, 21796838]

約数ペア:

[(1, 21796838), (2, 10898419), (7, 3113834), (14, 1556917), (19, 1147202), (38, 573601), (133, 163886), (266, 81943)]