20520495

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^2\times {\mathrm{131}}^1$

素因数の和:260

約数の個数: 36

約数和(自身を含む): 36458136

約数和(自身を除く): 15937641

約数列:

[1, 3, 5, 9, 15, 45, 59, 131, 177, 295, 393, 531, 655, 885, 1179, 1965, 2655, 3481, 5895, 7729, 10443, 17405, 23187, 31329, 38645, 52215, 69561, 115935, 156645, 347805, 456011, 1368033, 2280055, 4104099, 6840165, 20520495]

約数ペア:

[(1, 20520495), (3, 6840165), (5, 4104099), (9, 2280055), (15, 1368033), (45, 456011), (59, 347805), (131, 156645), (177, 115935), (295, 69561), (393, 52215), (531, 38645), (655, 31329), (885, 23187), (1179, 17405), (1965, 10443), (2655, 7729), (3481, 5895)]