221566163

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{128147}}^1$

素因数の和:128186

約数の個数: 16

約数和(自身を含む): 287051520

約数和(自身を除く): 65485357

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 128147, 897029, 1665911, 2434793, 11661377, 17043551, 31652309, 221566163]

約数ペア:

[(1, 221566163), (7, 31652309), (13, 17043551), (19, 11661377), (91, 2434793), (133, 1665911), (247, 897029), (1729, 128147)]