20275101

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1721}}^1$

素因数の和:1762

約数の個数: 48

約数和(自身を含む): 38683008

約数和(自身を除く): 18407907

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, 1721, 3927, 5163, 11781, 12047, 15489, 18931, 29257, 36141, 56793, 87771, 108423, 132517, 170379, 204799, 263313, 321827, 397551, 614397, 965481, 1192653, 1843191, 2252789, 2896443, 6758367, 20275101]

約数ペア:

[(1, 20275101), (3, 6758367), (7, 2896443), (9, 2252789), (11, 1843191), (17, 1192653), (21, 965481), (33, 614397), (51, 397551), (63, 321827), (77, 263313), (99, 204799), (119, 170379), (153, 132517), (187, 108423), (231, 87771), (357, 56793), (561, 36141), (693, 29257), (1071, 18931), (1309, 15489), (1683, 12047), (1721, 11781), (3927, 5163)]