28557851

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1303}}^1$

素因数の和:1442

約数の個数: 16

約数和(自身を含む): 34050048

約数和(自身を除く): 5492197

約数列:

[1, 7, 31, 101, 217, 707, 1303, 3131, 9121, 21917, 40393, 131603, 282751, 921221, 4079693, 28557851]

約数ペア:

[(1, 28557851), (7, 4079693), (31, 921221), (101, 282751), (217, 131603), (707, 40393), (1303, 21917), (3131, 9121)]