21581153

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{433}}^1$

素因数の和:664

約数の個数: 16

約数和(自身を含む): 24748416

約数和(自身を除く): 3167263

約数列:

[1, 11, 23, 197, 253, 433, 2167, 4531, 4763, 9959, 49841, 85301, 109549, 938311, 1961923, 21581153]

約数ペア:

[(1, 21581153), (11, 1961923), (23, 938311), (197, 109549), (253, 85301), (433, 49841), (2167, 9959), (4531, 4763)]