20531151

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{5393}}^1$

素因数の和:5452

約数の個数: 20

約数和(自身を含む): 31328352

約数和(自身を除く): 10797201

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 5393, 16179, 48537, 145611, 253471, 436833, 760413, 2281239, 6843717, 20531151]

約数ペア:

[(1, 20531151), (3, 6843717), (9, 2281239), (27, 760413), (47, 436833), (81, 253471), (141, 145611), (423, 48537), (1269, 16179), (3807, 5393)]