21350147

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{373}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 28651392

約数和(自身を除く): 7301245

約数列:

[1, 7, 13, 17, 37, 91, 119, 221, 259, 373, 481, 629, 1547, 2611, 3367, 4403, 4849, 6341, 8177, 13801, 33943, 44387, 57239, 82433, 96607, 179413, 234617, 577031, 1255891, 1642319, 3050021, 21350147]

約数ペア:

[(1, 21350147), (7, 3050021), (13, 1642319), (17, 1255891), (37, 577031), (91, 234617), (119, 179413), (221, 96607), (259, 82433), (373, 57239), (481, 44387), (629, 33943), (1547, 13801), (2611, 8177), (3367, 6341), (4403, 4849)]