20411716

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^2$

素因数の和:260

約数の個数: 36

約数和(自身を含む): 39895212

約数和(自身を除く): 19483496

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 103, 148, 206, 412, 481, 962, 1339, 1924, 2678, 3811, 5356, 7622, 10609, 15244, 21218, 42436, 49543, 99086, 137917, 198172, 275834, 392533, 551668, 785066, 1570132, 5102929, 10205858, 20411716]

約数ペア:

[(1, 20411716), (2, 10205858), (4, 5102929), (13, 1570132), (26, 785066), (37, 551668), (52, 392533), (74, 275834), (103, 198172), (148, 137917), (206, 99086), (412, 49543), (481, 42436), (962, 21218), (1339, 15244), (1924, 10609), (2678, 7622), (3811, 5356)]