13281681

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 21231360

約数和(自身を除く): 7949679

約数列:

[1, 3, 7, 21, 29, 87, 113, 193, 203, 339, 579, 609, 791, 1351, 2373, 3277, 4053, 5597, 9831, 16791, 21809, 22939, 39179, 65427, 68817, 117537, 152663, 457989, 632461, 1897383, 4427227, 13281681]

約数ペア:

[(1, 13281681), (3, 4427227), (7, 1897383), (21, 632461), (29, 457989), (87, 152663), (113, 117537), (193, 68817), (203, 65427), (339, 39179), (579, 22939), (609, 21809), (791, 16791), (1351, 9831), (2373, 5597), (3277, 4053)]