21931460

素因数分解:

$2^2\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1307}}^1$

素因数の和:2155

約数の個数: 24

約数和(自身を含む): 46146240

約数和(自身を除く): 24214780

約数列:

[1, 2, 4, 5, 10, 20, 839, 1307, 1678, 2614, 3356, 4195, 5228, 6535, 8390, 13070, 16780, 26140, 1096573, 2193146, 4386292, 5482865, 10965730, 21931460]

約数ペア:

[(1, 21931460), (2, 10965730), (4, 5482865), (5, 4386292), (10, 2193146), (20, 1096573), (839, 26140), (1307, 16780), (1678, 13070), (2614, 8390), (3356, 6535), (4195, 5228)]