28473627

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 48066048

約数和(自身を除く): 19592421

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 113, 169, 213, 273, 339, 497, 507, 791, 923, 1183, 1469, 1491, 2373, 2769, 3549, 4407, 6461, 8023, 10283, 11999, 19097, 19383, 24069, 30849, 35997, 56161, 57291, 83993, 104299, 133679, 168483, 251979, 312897, 401037, 730093, 1355887, 2190279, 4067661, 9491209, 28473627]

約数ペア:

[(1, 28473627), (3, 9491209), (7, 4067661), (13, 2190279), (21, 1355887), (39, 730093), (71, 401037), (91, 312897), (113, 251979), (169, 168483), (213, 133679), (273, 104299), (339, 83993), (497, 57291), (507, 56161), (791, 35997), (923, 30849), (1183, 24069), (1469, 19383), (1491, 19097), (2373, 11999), (2769, 10283), (3549, 8023), (4407, 6461)]