28228291

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{13487}}^1$

素因数の和:13530

約数の個数: 16

約数和(自身を含む): 36255744

約数和(自身を除く): 8027453

約数列:

[1, 7, 13, 23, 91, 161, 299, 2093, 13487, 94409, 175331, 310201, 1227317, 2171407, 4032613, 28228291]

約数ペア:

[(1, 28228291), (7, 4032613), (13, 2171407), (23, 1227317), (91, 310201), (161, 175331), (299, 94409), (2093, 13487)]