81396978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{5407}}^1$

素因数の和:5618

約数の個数: 32

約数和(自身を含む): 176257536

約数和(自身を除く): 94860558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 193, 386, 579, 1158, 2509, 5018, 5407, 7527, 10814, 15054, 16221, 32442, 70291, 140582, 210873, 421746, 1043551, 2087102, 3130653, 6261306, 13566163, 27132326, 40698489, 81396978]

約数ペア:

[(1, 81396978), (2, 40698489), (3, 27132326), (6, 13566163), (13, 6261306), (26, 3130653), (39, 2087102), (78, 1043551), (193, 421746), (386, 210873), (579, 140582), (1158, 70291), (2509, 32442), (5018, 16221), (5407, 15054), (7527, 10814)]