18019771

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 24076800

約数和(自身を除く): 6057029

約数列:

[1, 7, 11, 19, 77, 109, 113, 133, 209, 763, 791, 1199, 1243, 1463, 2071, 2147, 8393, 8701, 12317, 14497, 15029, 22781, 23617, 86219, 135487, 159467, 165319, 234023, 948409, 1638161, 2574253, 18019771]

約数ペア:

[(1, 18019771), (7, 2574253), (11, 1638161), (19, 948409), (77, 234023), (109, 165319), (113, 159467), (133, 135487), (209, 86219), (763, 23617), (791, 22781), (1199, 15029), (1243, 14497), (1463, 12317), (2071, 8701), (2147, 8393)]