21490450

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{14821}}^1$

素因数の和:14862

約数の個数: 24

約数和(自身を含む): 41353380

約数和(自身を除く): 19862930

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450, 14821, 29642, 74105, 148210, 370525, 429809, 741050, 859618, 2149045, 4298090, 10745225, 21490450]

約数ペア:

[(1, 21490450), (2, 10745225), (5, 4298090), (10, 2149045), (25, 859618), (29, 741050), (50, 429809), (58, 370525), (145, 148210), (290, 74105), (725, 29642), (1450, 14821)]