28188771

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 44767968

約数和(自身を除く): 16579197

約数列:

[1, 3, 13, 17, 39, 41, 51, 61, 123, 183, 221, 289, 533, 663, 697, 793, 867, 1037, 1599, 2091, 2379, 2501, 3111, 3757, 7503, 9061, 11271, 11849, 13481, 17629, 27183, 32513, 35547, 40443, 42517, 52887, 97539, 127551, 154037, 229177, 462111, 552721, 687531, 722789, 1658163, 2168367, 9396257, 28188771]

約数ペア:

[(1, 28188771), (3, 9396257), (13, 2168367), (17, 1658163), (39, 722789), (41, 687531), (51, 552721), (61, 462111), (123, 229177), (183, 154037), (221, 127551), (289, 97539), (533, 52887), (663, 42517), (697, 40443), (793, 35547), (867, 32513), (1037, 27183), (1599, 17629), (2091, 13481), (2379, 11849), (2501, 11271), (3111, 9061), (3757, 7503)]