18982418

素因数分解:

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

素因数の和:219

約数の個数: 48

約数和(自身を含む): 36049536

約数和(自身を除く): 17067118

約数列:

[1, 2, 7, 13, 14, 26, 71, 91, 113, 142, 169, 182, 226, 338, 497, 791, 923, 994, 1183, 1469, 1582, 1846, 2366, 2938, 6461, 8023, 10283, 11999, 12922, 16046, 19097, 20566, 23998, 38194, 56161, 83993, 104299, 112322, 133679, 167986, 208598, 267358, 730093, 1355887, 1460186, 2711774, 9491209, 18982418]

約数ペア:

[(1, 18982418), (2, 9491209), (7, 2711774), (13, 1460186), (14, 1355887), (26, 730093), (71, 267358), (91, 208598), (113, 167986), (142, 133679), (169, 112322), (182, 104299), (226, 83993), (338, 56161), (497, 38194), (791, 23998), (923, 20566), (994, 19097), (1183, 16046), (1469, 12922), (1582, 11999), (1846, 10283), (2366, 8023), (2938, 6461)]