21511906

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{463}}^1\times {\mathrm{1787}}^1$

素因数の和:2265

約数の個数: 16

約数和(自身を含む): 34844544

約数和(自身を除く): 13332638

約数列:

[1, 2, 13, 26, 463, 926, 1787, 3574, 6019, 12038, 23231, 46462, 827381, 1654762, 10755953, 21511906]

約数ペア:

[(1, 21511906), (2, 10755953), (13, 1654762), (26, 827381), (463, 46462), (926, 23231), (1787, 12038), (3574, 6019)]