221821825

素因数分解:

$5^2\times {\mathrm{113}}^1\times {\mathrm{233}}^1\times {\mathrm{337}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 279511128

約数和(自身を除く): 57689303

約数列:

[1, 5, 25, 113, 233, 337, 565, 1165, 1685, 2825, 5825, 8425, 26329, 38081, 78521, 131645, 190405, 392605, 658225, 952025, 1963025, 8872873, 44364365, 221821825]

約数ペア:

[(1, 221821825), (5, 44364365), (25, 8872873), (113, 1963025), (233, 952025), (337, 658225), (565, 392605), (1165, 190405), (1685, 131645), (2825, 78521), (5825, 38081), (8425, 26329)]