20808075

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{5903}}^1$

素因数の和:5963

約数の個数: 24

約数和(自身を含む): 35140608

約数和(自身を除く): 14332533

約数列:

[1, 3, 5, 15, 25, 47, 75, 141, 235, 705, 1175, 3525, 5903, 17709, 29515, 88545, 147575, 277441, 442725, 832323, 1387205, 4161615, 6936025, 20808075]

約数ペア:

[(1, 20808075), (3, 6936025), (5, 4161615), (15, 1387205), (25, 832323), (47, 442725), (75, 277441), (141, 147575), (235, 88545), (705, 29515), (1175, 17709), (3525, 5903)]