21977332

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{1607}}^1$

素因数の和:1887

約数の個数: 24

約数和(自身を含む): 41602176

約数和(自身を除く): 19624844

約数列:

[1, 2, 4, 13, 26, 52, 263, 526, 1052, 1607, 3214, 3419, 6428, 6838, 13676, 20891, 41782, 83564, 422641, 845282, 1690564, 5494333, 10988666, 21977332]

約数ペア:

[(1, 21977332), (2, 10988666), (4, 5494333), (13, 1690564), (26, 845282), (52, 422641), (263, 83564), (526, 41782), (1052, 20891), (1607, 13676), (3214, 6838), (3419, 6428)]