21445039

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{12109}}^1$

素因数の和:12150

約数の個数: 16

約数和(自身を含む): 27901440

約数和(自身を除く): 6456401

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 12109, 84763, 133199, 278507, 932393, 1949549, 3063577, 21445039]

約数ペア:

[(1, 21445039), (7, 3063577), (11, 1949549), (23, 932393), (77, 278507), (161, 133199), (253, 84763), (1771, 12109)]