19480167

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 33813312

約数和(自身を除く): 14333145

約数列:

[1, 3, 7, 9, 21, 37, 61, 63, 111, 137, 183, 259, 333, 411, 427, 549, 777, 959, 1233, 1281, 2257, 2331, 2877, 3843, 5069, 6771, 8357, 8631, 15207, 15799, 20313, 25071, 35483, 45621, 47397, 58499, 75213, 106449, 142191, 175497, 309209, 319347, 526491, 927627, 2164463, 2782881, 6493389, 19480167]

約数ペア:

[(1, 19480167), (3, 6493389), (7, 2782881), (9, 2164463), (21, 927627), (37, 526491), (61, 319347), (63, 309209), (111, 175497), (137, 142191), (183, 106449), (259, 75213), (333, 58499), (411, 47397), (427, 45621), (549, 35483), (777, 25071), (959, 20313), (1233, 15799), (1281, 15207), (2257, 8631), (2331, 8357), (2877, 6771), (3843, 5069)]