216564481

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43391}}^1$

素因数の和:43452

約数の個数: 16

約数和(自身を含む): 266600448

約数和(自身を除く): 50035967

約数列:

[1, 7, 23, 31, 161, 217, 713, 4991, 43391, 303737, 997993, 1345121, 6985951, 9415847, 30937783, 216564481]

約数ペア:

[(1, 216564481), (7, 30937783), (23, 9415847), (31, 6985951), (161, 1345121), (217, 997993), (713, 303737), (4991, 43391)]