18747339

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{103}}^1\times {\mathrm{359}}^1$

素因数の和:491

約数の個数: 24

約数和(自身を含む): 27406080

約数和(自身を除く): 8658741

約数列:

[1, 3, 13, 39, 103, 169, 309, 359, 507, 1077, 1339, 4017, 4667, 14001, 17407, 36977, 52221, 60671, 110931, 182013, 480701, 1442103, 6249113, 18747339]

約数ペア:

[(1, 18747339), (3, 6249113), (13, 1442103), (39, 480701), (103, 182013), (169, 110931), (309, 60671), (359, 52221), (507, 36977), (1077, 17407), (1339, 14001), (4017, 4667)]