20402404

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{4591}}^1$

素因数の和:4707

約数の個数: 24

約数和(自身を含む): 39344256

約数和(自身を除く): 18941852

約数列:

[1, 2, 4, 11, 22, 44, 101, 202, 404, 1111, 2222, 4444, 4591, 9182, 18364, 50501, 101002, 202004, 463691, 927382, 1854764, 5100601, 10201202, 20402404]

約数ペア:

[(1, 20402404), (2, 10201202), (4, 5100601), (11, 1854764), (22, 927382), (44, 463691), (101, 202004), (202, 101002), (404, 50501), (1111, 18364), (2222, 9182), (4444, 4591)]