21606325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3499}}^1$

素因数の和:3541

約数の個数: 24

約数和(自身を含む): 30380000

約数和(自身を除く): 8773675

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 1235, 3499, 6175, 17495, 45487, 66481, 87475, 227435, 332405, 864253, 1137175, 1662025, 4321265, 21606325]

約数ペア:

[(1, 21606325), (5, 4321265), (13, 1662025), (19, 1137175), (25, 864253), (65, 332405), (95, 227435), (247, 87475), (325, 66481), (475, 45487), (1235, 17495), (3499, 6175)]