21715630

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127739}}^1$

素因数の和:127763

約数の個数: 16

約数和(自身を含む): 41387760

約数和(自身を除く): 19672130

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 127739, 255478, 638695, 1277390, 2171563, 4343126, 10857815, 21715630]

約数ペア:

[(1, 21715630), (2, 10857815), (5, 4343126), (10, 2171563), (17, 1277390), (34, 638695), (85, 255478), (170, 127739)]