21473782

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{7451}}^1$

素因数の和:7595

約数の個数: 16

約数和(自身を含む): 35411904

約数和(自身を除く): 13938122

約数列:

[1, 2, 11, 22, 131, 262, 1441, 2882, 7451, 14902, 81961, 163922, 976081, 1952162, 10736891, 21473782]

約数ペア:

[(1, 21473782), (2, 10736891), (11, 1952162), (22, 976081), (131, 163922), (262, 81961), (1441, 14902), (2882, 7451)]