31278177

素因数分解:

$3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2713}}^1$

素因数の和:2790

約数の個数: 32

約数和(自身を含む): 53845760

約数和(自身を除く): 22567583

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 183, 189, 427, 549, 1281, 1647, 2713, 3843, 8139, 11529, 18991, 24417, 56973, 73251, 165493, 170919, 496479, 512757, 1158451, 1489437, 3475353, 4468311, 10426059, 31278177]

約数ペア:

[(1, 31278177), (3, 10426059), (7, 4468311), (9, 3475353), (21, 1489437), (27, 1158451), (61, 512757), (63, 496479), (183, 170919), (189, 165493), (427, 73251), (549, 56973), (1281, 24417), (1647, 18991), (2713, 11529), (3843, 8139)]