21437475

素因数分解:

$3^1\times 5^2\times {\mathrm{193}}^1\times {\mathrm{1481}}^1$

素因数の和:1687

約数の個数: 24

約数和(自身を含む): 35650992

約数和(自身を除く): 14213517

約数列:

[1, 3, 5, 15, 25, 75, 193, 579, 965, 1481, 2895, 4443, 4825, 7405, 14475, 22215, 37025, 111075, 285833, 857499, 1429165, 4287495, 7145825, 21437475]

約数ペア:

[(1, 21437475), (3, 7145825), (5, 4287495), (15, 1429165), (25, 857499), (75, 285833), (193, 111075), (579, 37025), (965, 22215), (1481, 14475), (2895, 7405), (4443, 4825)]