20955825

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8467}}^1$

素因数の和:8494

約数の個数: 36

約数和(自身を含む): 40951248

約数和(自身を除く): 19995423

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 165, 225, 275, 495, 825, 2475, 8467, 25401, 42335, 76203, 93137, 127005, 211675, 279411, 381015, 465685, 635025, 838233, 1397055, 1905075, 2328425, 4191165, 6985275, 20955825]

約数ペア:

[(1, 20955825), (3, 6985275), (5, 4191165), (9, 2328425), (11, 1905075), (15, 1397055), (25, 838233), (33, 635025), (45, 465685), (55, 381015), (75, 279411), (99, 211675), (165, 127005), (225, 93137), (275, 76203), (495, 42335), (825, 25401), (2475, 8467)]