81942231

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{5009}}^1$

素因数の和:5079

約数の個数: 32

約数和(自身を含む): 134668800

約数和(自身を除く): 52726569

約数列:

[1, 3, 7, 19, 21, 41, 57, 123, 133, 287, 399, 779, 861, 2337, 5009, 5453, 15027, 16359, 35063, 95171, 105189, 205369, 285513, 616107, 666197, 1437583, 1998591, 3902011, 4312749, 11706033, 27314077, 81942231]

約数ペア:

[(1, 81942231), (3, 27314077), (7, 11706033), (19, 4312749), (21, 3902011), (41, 1998591), (57, 1437583), (123, 666197), (133, 616107), (287, 285513), (399, 205369), (779, 105189), (861, 95171), (2337, 35063), (5009, 16359), (5453, 15027)]