21949291

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{10487}}^1$

素因数の和:10530

約数の個数: 16

約数和(自身を含む): 28191744

約数和(自身を除く): 6242453

約数列:

[1, 7, 13, 23, 91, 161, 299, 2093, 10487, 73409, 136331, 241201, 954317, 1688407, 3135613, 21949291]

約数ペア:

[(1, 21949291), (7, 3135613), (13, 1688407), (23, 954317), (91, 241201), (161, 136331), (299, 73409), (2093, 10487)]