20835984

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{33391}}^1$

素因数の和:33415

約数の個数: 40

約数和(自身を含む): 57968512

約数和(自身を除く): 37132528

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 33391, 66782, 100173, 133564, 200346, 267128, 400692, 434083, 534256, 801384, 868166, 1302249, 1602768, 1736332, 2604498, 3472664, 5208996, 6945328, 10417992, 20835984]

約数ペア:

[(1, 20835984), (2, 10417992), (3, 6945328), (4, 5208996), (6, 3472664), (8, 2604498), (12, 1736332), (13, 1602768), (16, 1302249), (24, 868166), (26, 801384), (39, 534256), (48, 434083), (52, 400692), (78, 267128), (104, 200346), (156, 133564), (208, 100173), (312, 66782), (624, 33391)]