21992948

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{821}}^1$

素因数の和:1043

約数の個数: 24

約数和(自身を含む): 39794664

約数和(自身を除く): 17801716

約数列:

[1, 2, 4, 37, 74, 148, 181, 362, 724, 821, 1642, 3284, 6697, 13394, 26788, 30377, 60754, 121508, 148601, 297202, 594404, 5498237, 10996474, 21992948]

約数ペア:

[(1, 21992948), (2, 10996474), (4, 5498237), (37, 594404), (74, 297202), (148, 148601), (181, 121508), (362, 60754), (724, 30377), (821, 26788), (1642, 13394), (3284, 6697)]