20121604

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{617}}^1$

素因数の和:915

約数の個数: 24

約数和(自身を含む): 36546048

約数和(自身を除く): 16424444

約数列:

[1, 2, 4, 31, 62, 124, 263, 526, 617, 1052, 1234, 2468, 8153, 16306, 19127, 32612, 38254, 76508, 162271, 324542, 649084, 5030401, 10060802, 20121604]

約数ペア:

[(1, 20121604), (2, 10060802), (4, 5030401), (31, 649084), (62, 324542), (124, 162271), (263, 76508), (526, 38254), (617, 32612), (1052, 19127), (1234, 16306), (2468, 8153)]