18756712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^2$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 40495140

約数和(自身を除く): 21738428

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 103, 104, 136, 206, 221, 412, 442, 824, 884, 1339, 1751, 1768, 2678, 3502, 5356, 7004, 10609, 10712, 14008, 21218, 22763, 42436, 45526, 84872, 91052, 137917, 180353, 182104, 275834, 360706, 551668, 721412, 1103336, 1442824, 2344589, 4689178, 9378356, 18756712]

約数ペア:

[(1, 18756712), (2, 9378356), (4, 4689178), (8, 2344589), (13, 1442824), (17, 1103336), (26, 721412), (34, 551668), (52, 360706), (68, 275834), (103, 182104), (104, 180353), (136, 137917), (206, 91052), (221, 84872), (412, 45526), (442, 42436), (824, 22763), (884, 21218), (1339, 14008), (1751, 10712), (1768, 10609), (2678, 7004), (3502, 5356)]