81972531

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{2473}}^1$

素因数の和:2635

約数の個数: 24

約数和(自身を含む): 123502080

約数和(自身を除く): 41529549

約数列:

[1, 3, 9, 29, 87, 127, 261, 381, 1143, 2473, 3683, 7419, 11049, 22257, 33147, 71717, 215151, 314071, 645453, 942213, 2826639, 9108059, 27324177, 81972531]

約数ペア:

[(1, 81972531), (3, 27324177), (9, 9108059), (29, 2826639), (87, 942213), (127, 645453), (261, 314071), (381, 215151), (1143, 71717), (2473, 33147), (3683, 22257), (7419, 11049)]