1661391

素因数分解:

$3^6\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:114

約数の個数: 28

約数和(自身を含む): 2596968

約数和(自身を除く): 935577

約数列:

[1, 3, 9, 27, 43, 53, 81, 129, 159, 243, 387, 477, 729, 1161, 1431, 2279, 3483, 4293, 6837, 10449, 12879, 20511, 31347, 38637, 61533, 184599, 553797, 1661391]

約数ペア:

[(1, 1661391), (3, 553797), (9, 184599), (27, 61533), (43, 38637), (53, 31347), (81, 20511), (129, 12879), (159, 10449), (243, 6837), (387, 4293), (477, 3483), (729, 2279), (1161, 1431)]