21551035

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{503}}^1$

素因数の和:579

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 8930885

約数列:

[1, 5, 11, 19, 41, 55, 95, 205, 209, 451, 503, 779, 1045, 2255, 2515, 3895, 5533, 8569, 9557, 20623, 27665, 42845, 47785, 103115, 105127, 226853, 391837, 525635, 1134265, 1959185, 4310207, 21551035]

約数ペア:

[(1, 21551035), (5, 4310207), (11, 1959185), (19, 1134265), (41, 525635), (55, 391837), (95, 226853), (205, 105127), (209, 103115), (451, 47785), (503, 42845), (779, 27665), (1045, 20623), (2255, 9557), (2515, 8569), (3895, 5533)]