21365212

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{4013}}^1$

素因数の和:4050

約数の個数: 24

約数和(自身を含む): 41135472

約数和(自身を除く): 19770260

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 1331, 2662, 4013, 5324, 8026, 16052, 44143, 88286, 176572, 485573, 971146, 1942292, 5341303, 10682606, 21365212]

約数ペア:

[(1, 21365212), (2, 10682606), (4, 5341303), (11, 1942292), (22, 971146), (44, 485573), (121, 176572), (242, 88286), (484, 44143), (1331, 16052), (2662, 8026), (4013, 5324)]