21563564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{4337}}^1$

素因数の和:4465

約数の個数: 24

約数和(自身を含む): 41540688

約数和(自身を除く): 19977124

約数列:

[1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4337, 4972, 8674, 17348, 47707, 95414, 190828, 490081, 980162, 1960324, 5390891, 10781782, 21563564]

約数ペア:

[(1, 21563564), (2, 10781782), (4, 5390891), (11, 1960324), (22, 980162), (44, 490081), (113, 190828), (226, 95414), (452, 47707), (1243, 17348), (2486, 8674), (4337, 4972)]