21875475

素因数分解:

$3^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{2129}}^1$

素因数の和:2279

約数の個数: 24

約数和(自身を含む): 36448560

約数和(自身を除く): 14573085

約数列:

[1, 3, 5, 15, 25, 75, 137, 411, 685, 2055, 2129, 3425, 6387, 10275, 10645, 31935, 53225, 159675, 291673, 875019, 1458365, 4375095, 7291825, 21875475]

約数ペア:

[(1, 21875475), (3, 7291825), (5, 4375095), (15, 1458365), (25, 875019), (75, 291673), (137, 159675), (411, 53225), (685, 31935), (2055, 10645), (2129, 10275), (3425, 6387)]