221728385

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^2\times {\mathrm{463}}^1$

素因数の和:629

約数の個数: 24

約数和(自身を含む): 284691840

約数和(自身を除く): 62963455

約数列:

[1, 5, 19, 71, 95, 355, 463, 1349, 2315, 5041, 6745, 8797, 25205, 32873, 43985, 95779, 164365, 478895, 624587, 2333983, 3122935, 11669915, 44345677, 221728385]

約数ペア:

[(1, 221728385), (5, 44345677), (19, 11669915), (71, 3122935), (95, 2333983), (355, 624587), (463, 478895), (1349, 164365), (2315, 95779), (5041, 43985), (6745, 32873), (8797, 25205)]