21087650

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{24809}}^1$

素因数の和:24838

約数の個数: 24

約数和(自身を含む): 41531940

約数和(自身を除く): 20444290

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 425, 850, 24809, 49618, 124045, 248090, 421753, 620225, 843506, 1240450, 2108765, 4217530, 10543825, 21087650]

約数ペア:

[(1, 21087650), (2, 10543825), (5, 4217530), (10, 2108765), (17, 1240450), (25, 843506), (34, 620225), (50, 421753), (85, 248090), (170, 124045), (425, 49618), (850, 24809)]