20909097

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:811

約数の個数: 40

約数和(自身を含む): 35219712

約数和(自身を除く): 14310615

約数列:

[1, 3, 9, 11, 27, 31, 33, 81, 93, 99, 279, 297, 341, 757, 837, 891, 1023, 2271, 2511, 3069, 6813, 8327, 9207, 20439, 23467, 24981, 27621, 61317, 70401, 74943, 211203, 224829, 258137, 633609, 674487, 774411, 1900827, 2323233, 6969699, 20909097]

約数ペア:

[(1, 20909097), (3, 6969699), (9, 2323233), (11, 1900827), (27, 774411), (31, 674487), (33, 633609), (81, 258137), (93, 224829), (99, 211203), (279, 74943), (297, 70401), (341, 61317), (757, 27621), (837, 24981), (891, 23467), (1023, 20439), (2271, 9207), (2511, 8327), (3069, 6813)]