21871575

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8837}}^1$

素因数の和:8864

約数の個数: 36

約数和(自身を含む): 42740568

約数和(自身を除く): 20868993

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 165, 225, 275, 495, 825, 2475, 8837, 26511, 44185, 79533, 97207, 132555, 220925, 291621, 397665, 486035, 662775, 874863, 1458105, 1988325, 2430175, 4374315, 7290525, 21871575]

約数ペア:

[(1, 21871575), (3, 7290525), (5, 4374315), (9, 2430175), (11, 1988325), (15, 1458105), (25, 874863), (33, 662775), (45, 486035), (55, 397665), (75, 291621), (99, 220925), (165, 132555), (225, 97207), (275, 79533), (495, 44185), (825, 26511), (2475, 8837)]