31891167

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2707}}^1$

素因数の和:2748

約数の個数: 48

約数和(自身を含む): 60832512

約数和(自身を除く): 28941345

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 63, 77, 99, 119, 153, 187, 231, 357, 561, 693, 1071, 1309, 1683, 2707, 3927, 8121, 11781, 18949, 24363, 29777, 46019, 56847, 89331, 138057, 170541, 208439, 267993, 322133, 414171, 506209, 625317, 966399, 1518627, 1875951, 2899197, 3543463, 4555881, 10630389, 31891167]

約数ペア:

[(1, 31891167), (3, 10630389), (7, 4555881), (9, 3543463), (11, 2899197), (17, 1875951), (21, 1518627), (33, 966399), (51, 625317), (63, 506209), (77, 414171), (99, 322133), (119, 267993), (153, 208439), (187, 170541), (231, 138057), (357, 89331), (561, 56847), (693, 46019), (1071, 29777), (1309, 24363), (1683, 18949), (2707, 11781), (3927, 8121)]