21531075

素因数分解:

$3^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{2683}}^1$

素因数の和:2803

約数の個数: 24

約数和(自身を含む): 35944128

約数和(自身を除く): 14413053

約数列:

[1, 3, 5, 15, 25, 75, 107, 321, 535, 1605, 2675, 2683, 8025, 8049, 13415, 40245, 67075, 201225, 287081, 861243, 1435405, 4306215, 7177025, 21531075]

約数ペア:

[(1, 21531075), (3, 7177025), (5, 4306215), (15, 1435405), (25, 861243), (75, 287081), (107, 201225), (321, 67075), (535, 40245), (1605, 13415), (2675, 8049), (2683, 8025)]