18877274

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{6661}}^1$

素因数の和:6785

約数の個数: 16

約数和(自身を含む): 30778440

約数和(自身を除く): 11901166

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 6661, 13322, 86593, 173186, 726049, 1452098, 9438637, 18877274]

約数ペア:

[(1, 18877274), (2, 9438637), (13, 1452098), (26, 726049), (109, 173186), (218, 86593), (1417, 13322), (2834, 6661)]