1980381

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:165

約数の個数: 32

約数和(自身を含む): 3144960

約数和(自身を除く): 1164579

約数列:

[1, 3, 13, 17, 29, 39, 51, 87, 103, 221, 309, 377, 493, 663, 1131, 1339, 1479, 1751, 2987, 4017, 5253, 6409, 8961, 19227, 22763, 38831, 50779, 68289, 116493, 152337, 660127, 1980381]

約数ペア:

[(1, 1980381), (3, 660127), (13, 152337), (17, 116493), (29, 68289), (39, 50779), (51, 38831), (87, 22763), (103, 19227), (221, 8961), (309, 6409), (377, 5253), (493, 4017), (663, 2987), (1131, 1751), (1339, 1479)]