21677397

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1481}}^1$

素因数の和:1549

約数の個数: 32

約数和(自身を含む): 35852544

約数和(自身を除く): 14175147

約数列:

[1, 3, 7, 17, 21, 41, 51, 119, 123, 287, 357, 697, 861, 1481, 2091, 4443, 4879, 10367, 14637, 25177, 31101, 60721, 75531, 176239, 182163, 425047, 528717, 1032257, 1275141, 3096771, 7225799, 21677397]

約数ペア:

[(1, 21677397), (3, 7225799), (7, 3096771), (17, 1275141), (21, 1032257), (41, 528717), (51, 425047), (119, 182163), (123, 176239), (287, 75531), (357, 60721), (697, 31101), (861, 25177), (1481, 14637), (2091, 10367), (4443, 4879)]