21307836

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{479}}^1$

素因数の和:834

約数の個数: 48

約数和(自身を含む): 54512640

約数和(自身を除く): 33204804

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 337, 479, 674, 958, 1011, 1348, 1437, 1916, 2022, 2874, 3707, 4044, 5269, 5748, 7414, 10538, 11121, 14828, 15807, 21076, 22242, 31614, 44484, 63228, 161423, 322846, 484269, 645692, 968538, 1775653, 1937076, 3551306, 5326959, 7102612, 10653918, 21307836]

約数ペア:

[(1, 21307836), (2, 10653918), (3, 7102612), (4, 5326959), (6, 3551306), (11, 1937076), (12, 1775653), (22, 968538), (33, 645692), (44, 484269), (66, 322846), (132, 161423), (337, 63228), (479, 44484), (674, 31614), (958, 22242), (1011, 21076), (1348, 15807), (1437, 14828), (1916, 11121), (2022, 10538), (2874, 7414), (3707, 5748), (4044, 5269)]