81163731

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 120913920

約数和(自身を除く): 39750189

約数列:

[1, 3, 11, 33, 79, 163, 191, 237, 489, 573, 869, 1793, 2101, 2607, 5379, 6303, 12877, 15089, 31133, 38631, 45267, 93399, 141647, 165979, 342463, 424941, 497937, 1027389, 2459507, 7378521, 27054577, 81163731]

約数ペア:

[(1, 81163731), (3, 27054577), (11, 7378521), (33, 2459507), (79, 1027389), (163, 497937), (191, 424941), (237, 342463), (489, 165979), (573, 141647), (869, 93399), (1793, 45267), (2101, 38631), (2607, 31133), (5379, 15089), (6303, 12877)]