21347404

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1373}}^1$

素因数の和:1426

約数の個数: 36

約数和(自身を含む): 42242256

約数和(自身を除く): 20894852

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 169, 299, 338, 598, 676, 1196, 1373, 2746, 3887, 5492, 7774, 15548, 17849, 31579, 35698, 63158, 71396, 126316, 232037, 410527, 464074, 821054, 928148, 1642108, 5336851, 10673702, 21347404]

約数ペア:

[(1, 21347404), (2, 10673702), (4, 5336851), (13, 1642108), (23, 928148), (26, 821054), (46, 464074), (52, 410527), (92, 232037), (169, 126316), (299, 71396), (338, 63158), (598, 35698), (676, 31579), (1196, 17849), (1373, 15548), (2746, 7774), (3887, 5492)]