31139991

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{463}}^1$

素因数の和:572

約数の個数: 32

約数和(自身を含む): 48107520

約数和(自身を除く): 16967529

約数列:

[1, 3, 9, 27, 47, 53, 141, 159, 423, 463, 477, 1269, 1389, 1431, 2491, 4167, 7473, 12501, 21761, 22419, 24539, 65283, 67257, 73617, 195849, 220851, 587547, 662553, 1153333, 3459999, 10379997, 31139991]

約数ペア:

[(1, 31139991), (3, 10379997), (9, 3459999), (27, 1153333), (47, 662553), (53, 587547), (141, 220851), (159, 195849), (423, 73617), (463, 67257), (477, 65283), (1269, 24539), (1389, 22419), (1431, 21761), (2491, 12501), (4167, 7473)]