21195550

素因数分解:

$2^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{5807}}^1$

素因数の和:5892

約数の個数: 24

約数和(自身を含む): 39970656

約数和(自身を除く): 18775106

約数列:

[1, 2, 5, 10, 25, 50, 73, 146, 365, 730, 1825, 3650, 5807, 11614, 29035, 58070, 145175, 290350, 423911, 847822, 2119555, 4239110, 10597775, 21195550]

約数ペア:

[(1, 21195550), (2, 10597775), (5, 4239110), (10, 2119555), (25, 847822), (50, 423911), (73, 290350), (146, 145175), (365, 58070), (730, 29035), (1825, 11614), (3650, 5807)]