19527781

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{971}}^1$

素因数の和:1021

約数の個数: 24

約数和(自身を含む): 25614144

約数和(自身を除く): 6086363

約数列:

[1, 7, 13, 17, 91, 119, 169, 221, 971, 1183, 1547, 2873, 6797, 12623, 16507, 20111, 88361, 115549, 164099, 214591, 1148693, 1502137, 2789683, 19527781]

約数ペア:

[(1, 19527781), (7, 2789683), (13, 1502137), (17, 1148693), (91, 214591), (119, 164099), (169, 115549), (221, 88361), (971, 20111), (1183, 16507), (1547, 12623), (2873, 6797)]