20731657317

素因数分解:

$3^1\times 7^1\times {\mathrm{6301}}^1\times {\mathrm{156677}}^1$

素因数の和:162988

約数の個数: 16

約数和(自身を含む): 31596312192

約数和(自身を除く): 10864654875

約数列:

[1, 3, 7, 21, 6301, 18903, 44107, 132321, 156677, 470031, 1096739, 3290217, 987221777, 2961665331, 6910552439, 20731657317]

約数ペア:

[(1, 20731657317), (3, 6910552439), (7, 2961665331), (21, 987221777), (6301, 3290217), (18903, 1096739), (44107, 470031), (132321, 156677)]