20816121

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{1471}}^1$

素因数の和:1616

約数の個数: 16

約数和(自身を含む): 28615680

約数和(自身を除く): 7799559

約数列:

[1, 3, 53, 89, 159, 267, 1471, 4413, 4717, 14151, 77963, 130919, 233889, 392757, 6938707, 20816121]

約数ペア:

[(1, 20816121), (3, 6938707), (53, 392757), (89, 233889), (159, 130919), (267, 77963), (1471, 14151), (4413, 4717)]