21381390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{237571}}^1$

素因数の和:237584

約数の個数: 24

約数和(自身を含む): 55591848

約数和(自身を除く): 34210458

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 237571, 475142, 712713, 1187855, 1425426, 2138139, 2375710, 3563565, 4276278, 7127130, 10690695, 21381390]

約数ペア:

[(1, 21381390), (2, 10690695), (3, 7127130), (5, 4276278), (6, 3563565), (9, 2375710), (10, 2138139), (15, 1425426), (18, 1187855), (30, 712713), (45, 475142), (90, 237571)]