398913879

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{50387}}^1$

素因数の和:50439

約数の個数: 32

約数和(自身を含む): 677214720

約数和(自身を除く): 278300841

約数列:

[1, 3, 7, 13, 21, 29, 39, 87, 91, 203, 273, 377, 609, 1131, 2639, 7917, 50387, 151161, 352709, 655031, 1058127, 1461223, 1965093, 4383669, 4585217, 10228561, 13755651, 18995899, 30685683, 56987697, 132971293, 398913879]

約数ペア:

[(1, 398913879), (3, 132971293), (7, 56987697), (13, 30685683), (21, 18995899), (29, 13755651), (39, 10228561), (87, 4585217), (91, 4383669), (203, 1965093), (273, 1461223), (377, 1058127), (609, 655031), (1131, 352709), (2639, 151161), (7917, 50387)]