21554519

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1613}}^1$

素因数の和:1726

約数の個数: 16

約数和(自身を含む): 26030592

約数和(自身を除く): 4476073

約数列:

[1, 7, 23, 83, 161, 581, 1613, 1909, 11291, 13363, 37099, 133879, 259693, 937153, 3079217, 21554519]

約数ペア:

[(1, 21554519), (7, 3079217), (23, 937153), (83, 259693), (161, 133879), (581, 37099), (1613, 13363), (1909, 11291)]