21262736

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120811}}^1$

素因数の和:120830

約数の個数: 20

約数和(自身を含む): 44942064

約数和(自身を除く): 23679328

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120811, 241622, 483244, 966488, 1328921, 1932976, 2657842, 5315684, 10631368, 21262736]

約数ペア:

[(1, 21262736), (2, 10631368), (4, 5315684), (8, 2657842), (11, 1932976), (16, 1328921), (22, 966488), (44, 483244), (88, 241622), (176, 120811)]