81872559

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{727}}^1$

素因数の和:876

約数の個数: 32

約数和(自身を含む): 125565440

約数和(自身を除く): 43692881

約数列:

[1, 3, 9, 27, 43, 97, 129, 291, 387, 727, 873, 1161, 2181, 2619, 4171, 6543, 12513, 19629, 31261, 37539, 70519, 93783, 112617, 211557, 281349, 634671, 844047, 1904013, 3032317, 9096951, 27290853, 81872559]

約数ペア:

[(1, 81872559), (3, 27290853), (9, 9096951), (27, 3032317), (43, 1904013), (97, 844047), (129, 634671), (291, 281349), (387, 211557), (727, 112617), (873, 93783), (1161, 70519), (2181, 37539), (2619, 31261), (4171, 19629), (6543, 12513)]