21637045

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^2\times {\mathrm{109}}^1$

素因数の和:217

約数の個数: 24

約数和(自身を含む): 27858600

約数和(自身を除く): 6221555

約数列:

[1, 5, 29, 37, 109, 145, 185, 545, 1073, 1369, 3161, 4033, 5365, 6845, 15805, 20165, 39701, 116957, 149221, 198505, 584785, 746105, 4327409, 21637045]

約数ペア:

[(1, 21637045), (5, 4327409), (29, 746105), (37, 584785), (109, 198505), (145, 149221), (185, 116957), (545, 39701), (1073, 20165), (1369, 15805), (3161, 6845), (4033, 5365)]