21349988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{1013}}^1$

素因数の和:1507

約数の個数: 24

約数和(自身を含む): 40884480

約数和(自身を除く): 19534492

約数列:

[1, 2, 4, 11, 22, 44, 479, 958, 1013, 1916, 2026, 4052, 5269, 10538, 11143, 21076, 22286, 44572, 485227, 970454, 1940908, 5337497, 10674994, 21349988]

約数ペア:

[(1, 21349988), (2, 10674994), (4, 5337497), (11, 1940908), (22, 970454), (44, 485227), (479, 44572), (958, 22286), (1013, 21076), (1916, 11143), (2026, 10538), (4052, 5269)]