18284985

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 14737095

約数列:

[1, 3, 5, 9, 15, 45, 59, 71, 97, 177, 213, 291, 295, 355, 485, 531, 639, 873, 885, 1065, 1455, 2655, 3195, 4189, 4365, 5723, 6887, 12567, 17169, 20661, 20945, 28615, 34435, 37701, 51507, 61983, 62835, 85845, 103305, 188505, 257535, 309915, 406333, 1218999, 2031665, 3656997, 6094995, 18284985]

約数ペア:

[(1, 18284985), (3, 6094995), (5, 3656997), (9, 2031665), (15, 1218999), (45, 406333), (59, 309915), (71, 257535), (97, 188505), (177, 103305), (213, 85845), (291, 62835), (295, 61983), (355, 51507), (485, 37701), (531, 34435), (639, 28615), (873, 20945), (885, 20661), (1065, 17169), (1455, 12567), (2655, 6887), (3195, 5723), (4189, 4365)]