20621224

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{198281}}^1$

素因数の和:198300

約数の個数: 16

約数和(自身を含む): 41639220

約数和(自身を除く): 21017996

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 198281, 396562, 793124, 1586248, 2577653, 5155306, 10310612, 20621224]

約数ペア:

[(1, 20621224), (2, 10310612), (4, 5155306), (8, 2577653), (13, 1586248), (26, 793124), (52, 396562), (104, 198281)]