19217718

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4831}}^1$

素因数の和:4869

約数の個数: 48

約数和(自身を含む): 47488896

約数和(自身を除く): 28271178

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 4831, 9662, 14493, 28986, 43479, 62803, 82127, 86958, 125606, 164254, 188409, 246381, 376818, 492762, 565227, 739143, 1067651, 1130454, 1478286, 2135302, 3202953, 6405906, 9608859, 19217718]

約数ペア:

[(1, 19217718), (2, 9608859), (3, 6405906), (6, 3202953), (9, 2135302), (13, 1478286), (17, 1130454), (18, 1067651), (26, 739143), (34, 565227), (39, 492762), (51, 376818), (78, 246381), (102, 188409), (117, 164254), (153, 125606), (221, 86958), (234, 82127), (306, 62803), (442, 43479), (663, 28986), (1326, 14493), (1989, 9662), (3978, 4831)]