20804475

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{6451}}^1$

素因数の和:6507

約数の個数: 24

約数和(自身を含む): 35202112

約数和(自身を除く): 14397637

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 6451, 19353, 32255, 96765, 161275, 277393, 483825, 832179, 1386965, 4160895, 6934825, 20804475]

約数ペア:

[(1, 20804475), (3, 6934825), (5, 4160895), (15, 1386965), (25, 832179), (43, 483825), (75, 277393), (129, 161275), (215, 96765), (645, 32255), (1075, 19353), (3225, 6451)]