21406590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{237851}}^1$

素因数の和:237864

約数の個数: 24

約数和(自身を含む): 55657368

約数和(自身を除く): 34250778

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 237851, 475702, 713553, 1189255, 1427106, 2140659, 2378510, 3567765, 4281318, 7135530, 10703295, 21406590]

約数ペア:

[(1, 21406590), (2, 10703295), (3, 7135530), (5, 4281318), (6, 3567765), (9, 2378510), (10, 2140659), (15, 1427106), (18, 1189255), (30, 713553), (45, 475702), (90, 237851)]