21446860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{63079}}^1$

素因数の和:63105

約数の個数: 24

約数和(自身を含む): 47688480

約数和(自身を除く): 26241620

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 63079, 126158, 252316, 315395, 630790, 1072343, 1261580, 2144686, 4289372, 5361715, 10723430, 21446860]

約数ペア:

[(1, 21446860), (2, 10723430), (4, 5361715), (5, 4289372), (10, 2144686), (17, 1261580), (20, 1072343), (34, 630790), (68, 315395), (85, 252316), (170, 126158), (340, 63079)]