20717736

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{66403}}^1$

素因数の和:66425

約数の個数: 32

約数和(自身を含む): 55779360

約数和(自身を除く): 35061624

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 66403, 132806, 199209, 265612, 398418, 531224, 796836, 863239, 1593672, 1726478, 2589717, 3452956, 5179434, 6905912, 10358868, 20717736]

約数ペア:

[(1, 20717736), (2, 10358868), (3, 6905912), (4, 5179434), (6, 3452956), (8, 2589717), (12, 1726478), (13, 1593672), (24, 863239), (26, 796836), (39, 531224), (52, 398418), (78, 265612), (104, 199209), (156, 132806), (312, 66403)]