2556981

素因数分解:

$3^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:262

約数の個数: 32

約数和(自身を含む): 4408320

約数和(自身を除く): 1851339

約数列:

[1, 3, 7, 9, 21, 27, 63, 83, 163, 189, 249, 489, 581, 747, 1141, 1467, 1743, 2241, 3423, 4401, 5229, 10269, 13529, 15687, 30807, 40587, 94703, 121761, 284109, 365283, 852327, 2556981]

約数ペア:

[(1, 2556981), (3, 852327), (7, 365283), (9, 284109), (21, 121761), (27, 94703), (63, 40587), (83, 30807), (163, 15687), (189, 13529), (249, 10269), (489, 5229), (581, 4401), (747, 3423), (1141, 2241), (1467, 1743)]