31905237

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6151}}^1$

素因数の和:6193

約数の個数: 32

約数和(自身を含む): 55121920

約数和(自身を除く): 23216683

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 5187, 6151, 18453, 43057, 79963, 116869, 129171, 239889, 350607, 559741, 818083, 1519297, 1679223, 2454249, 4557891, 10635079, 31905237]

約数ペア:

[(1, 31905237), (3, 10635079), (7, 4557891), (13, 2454249), (19, 1679223), (21, 1519297), (39, 818083), (57, 559741), (91, 350607), (133, 239889), (247, 129171), (273, 116869), (399, 79963), (741, 43057), (1729, 18453), (5187, 6151)]