21645967

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{4337}}^1$

素因数の和:4398

約数の個数: 16

約数和(自身を含む): 26652672

約数和(自身を除く): 5006705

約数列:

[1, 7, 23, 31, 161, 217, 713, 4337, 4991, 30359, 99751, 134447, 698257, 941129, 3092281, 21645967]

約数ペア:

[(1, 21645967), (7, 3092281), (23, 941129), (31, 698257), (161, 134447), (217, 99751), (713, 30359), (4337, 4991)]