81331803

素因数分解:

$3^3\times 7^1\times {\mathrm{653}}^1\times {\mathrm{659}}^1$

素因数の和:1328

約数の個数: 32

約数和(自身を含む): 138124800

約数和(自身を除く): 56792997

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 653, 659, 1959, 1977, 4571, 4613, 5877, 5931, 13713, 13839, 17631, 17793, 41139, 41517, 123417, 124551, 430327, 1290981, 3012289, 3872943, 9036867, 11618829, 27110601, 81331803]

約数ペア:

[(1, 81331803), (3, 27110601), (7, 11618829), (9, 9036867), (21, 3872943), (27, 3012289), (63, 1290981), (189, 430327), (653, 124551), (659, 123417), (1959, 41517), (1977, 41139), (4571, 17793), (4613, 17631), (5877, 13839), (5931, 13713)]