81195231

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 121282560

約数和(自身を除く): 40087329

約数列:

[1, 3, 13, 31, 39, 93, 239, 281, 403, 717, 843, 1209, 3107, 3653, 7409, 8711, 9321, 10959, 22227, 26133, 67159, 96317, 113243, 201477, 288951, 339729, 873067, 2081929, 2619201, 6245787, 27065077, 81195231]

約数ペア:

[(1, 81195231), (3, 27065077), (13, 6245787), (31, 2619201), (39, 2081929), (93, 873067), (239, 339729), (281, 288951), (403, 201477), (717, 113243), (843, 96317), (1209, 67159), (3107, 26133), (3653, 22227), (7409, 10959), (8711, 9321)]