20999004

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{134609}}^1$

素因数の和:134629

約数の個数: 24

約数和(自身を含む): 52767120

約数和(自身を除く): 31768116

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 134609, 269218, 403827, 538436, 807654, 1615308, 1749917, 3499834, 5249751, 6999668, 10499502, 20999004]

約数ペア:

[(1, 20999004), (2, 10499502), (3, 6999668), (4, 5249751), (6, 3499834), (12, 1749917), (13, 1615308), (26, 807654), (39, 538436), (52, 403827), (78, 269218), (156, 134609)]