21000966460

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14789413}}^1$

素因数の和:14789493

約数の個数: 24

約数和(自身を含む): 44723187936

約数和(自身を除く): 23722221476

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14789413, 29578826, 59157652, 73947065, 147894130, 295788260, 1050048323, 2100096646, 4200193292, 5250241615, 10500483230, 21000966460]

約数ペア:

[(1, 21000966460), (2, 10500483230), (4, 5250241615), (5, 4200193292), (10, 2100096646), (20, 1050048323), (71, 295788260), (142, 147894130), (284, 73947065), (355, 59157652), (710, 29578826), (1420, 14789413)]