18784779

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{977}}^1$

素因数の和:1039

約数の個数: 32

約数和(自身を含む): 29574720

約数和(自身を除く): 10789941

約数列:

[1, 3, 13, 17, 29, 39, 51, 87, 221, 377, 493, 663, 977, 1131, 1479, 2931, 6409, 12701, 16609, 19227, 28333, 38103, 49827, 84999, 215917, 368329, 481661, 647751, 1104987, 1444983, 6261593, 18784779]

約数ペア:

[(1, 18784779), (3, 6261593), (13, 1444983), (17, 1104987), (29, 647751), (39, 481661), (51, 368329), (87, 215917), (221, 84999), (377, 49827), (493, 38103), (663, 28333), (977, 19227), (1131, 16609), (1479, 12701), (2931, 6409)]