21221332

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6793}}^1$

素因数の和:6879

約数の個数: 24

約数和(自身を含む): 41090112

約数和(自身を除く): 19868780

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 6793, 13586, 27172, 74723, 149446, 298892, 482303, 964606, 1929212, 5305333, 10610666, 21221332]

約数ペア:

[(1, 21221332), (2, 10610666), (4, 5305333), (11, 1929212), (22, 964606), (44, 482303), (71, 298892), (142, 149446), (284, 74723), (781, 27172), (1562, 13586), (3124, 6793)]