21513866

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{18451}}^1$

素因数の和:18517

約数の個数: 16

約数和(自身を含む): 35870688

約数和(自身を除く): 14356822

約数列:

[1, 2, 11, 22, 53, 106, 583, 1166, 18451, 36902, 202961, 405922, 977903, 1955806, 10756933, 21513866]

約数ペア:

[(1, 21513866), (2, 10756933), (11, 1955806), (22, 977903), (53, 405922), (106, 202961), (583, 36902), (1166, 18451)]