20385118

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{1471}}^1$

素因数の和:1540

約数の個数: 24

約数和(自身を含む): 33941376

約数和(自身を除く): 13556258

約数列:

[1, 2, 13, 26, 41, 82, 169, 338, 533, 1066, 1471, 2942, 6929, 13858, 19123, 38246, 60311, 120622, 248599, 497198, 784043, 1568086, 10192559, 20385118]

約数ペア:

[(1, 20385118), (2, 10192559), (13, 1568086), (26, 784043), (41, 497198), (82, 248599), (169, 120622), (338, 60311), (533, 38246), (1066, 19123), (1471, 13858), (2942, 6929)]