19965762

素因数分解:

$2^1\times 3^2\times {\mathrm{521}}^1\times {\mathrm{2129}}^1$

素因数の和:2658

約数の個数: 24

約数和(自身を含む): 43362540

約数和(自身を除く): 23396778

約数列:

[1, 2, 3, 6, 9, 18, 521, 1042, 1563, 2129, 3126, 4258, 4689, 6387, 9378, 12774, 19161, 38322, 1109209, 2218418, 3327627, 6655254, 9982881, 19965762]

約数ペア:

[(1, 19965762), (2, 9982881), (3, 6655254), (6, 3327627), (9, 2218418), (18, 1109209), (521, 38322), (1042, 19161), (1563, 12774), (2129, 9378), (3126, 6387), (4258, 4689)]