21292280

素因数分解:

$2^3\times 5^1\times {\mathrm{532307}}^1$

素因数の和:532318

約数の個数: 16

約数和(自身を含む): 47907720

約数和(自身を除く): 26615440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 532307, 1064614, 2129228, 2661535, 4258456, 5323070, 10646140, 21292280]

約数ペア:

[(1, 21292280), (2, 10646140), (4, 5323070), (5, 4258456), (8, 2661535), (10, 2129228), (20, 1064614), (40, 532307)]