21925990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70729}}^1$

素因数の和:70767

約数の個数: 16

約数和(自身を含む): 40740480

約数和(自身を除く): 18814490

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 70729, 141458, 353645, 707290, 2192599, 4385198, 10962995, 21925990]

約数ペア:

[(1, 21925990), (2, 10962995), (5, 4385198), (10, 2192599), (31, 707290), (62, 353645), (155, 141458), (310, 70729)]