21400444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{929}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 40466160

約数和(自身を除く): 19065716

約数列:

[1, 2, 4, 13, 26, 52, 443, 886, 929, 1772, 1858, 3716, 5759, 11518, 12077, 23036, 24154, 48308, 411547, 823094, 1646188, 5350111, 10700222, 21400444]

約数ペア:

[(1, 21400444), (2, 10700222), (4, 5350111), (13, 1646188), (26, 823094), (52, 411547), (443, 48308), (886, 24154), (929, 23036), (1772, 12077), (1858, 11518), (3716, 5759)]