257335881

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{127837}}^1$

素因数の和:127912

約数の個数: 16

約数和(自身を含む): 380445888

約数和(自身を除く): 123110007

約数列:

[1, 3, 11, 33, 61, 183, 671, 2013, 127837, 383511, 1406207, 4218621, 7798057, 23394171, 85778627, 257335881]

約数ペア:

[(1, 257335881), (3, 85778627), (11, 23394171), (33, 7798057), (61, 4218621), (183, 1406207), (671, 383511), (2013, 127837)]