19901673

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{593}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 32503680

約数和(自身を除く): 12602007

約数列:

[1, 3, 9, 11, 27, 33, 99, 113, 297, 339, 593, 1017, 1243, 1779, 3051, 3729, 5337, 6523, 11187, 16011, 19569, 33561, 58707, 67009, 176121, 201027, 603081, 737099, 1809243, 2211297, 6633891, 19901673]

約数ペア:

[(1, 19901673), (3, 6633891), (9, 2211297), (11, 1809243), (27, 737099), (33, 603081), (99, 201027), (113, 176121), (297, 67009), (339, 58707), (593, 33561), (1017, 19569), (1243, 16011), (1779, 11187), (3051, 6523), (3729, 5337)]