21930275

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{337}}^1$

素因数の和:503

約数の個数: 24

約数和(自身を含む): 28919280

約数和(自身を除く): 6989005

約数列:

[1, 5, 19, 25, 95, 137, 337, 475, 685, 1685, 2603, 3425, 6403, 8425, 13015, 32015, 46169, 65075, 160075, 230845, 877211, 1154225, 4386055, 21930275]

約数ペア:

[(1, 21930275), (5, 4386055), (19, 1154225), (25, 877211), (95, 230845), (137, 160075), (337, 65075), (475, 46169), (685, 32015), (1685, 13015), (2603, 8425), (3425, 6403)]