9903439

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{2221}}^1$

素因数の和:2255

約数の個数: 16

約数和(自身を含む): 12443200

約数和(自身を除く): 2539761

約数列:

[1, 7, 13, 49, 91, 343, 637, 2221, 4459, 15547, 28873, 108829, 202111, 761803, 1414777, 9903439]

約数ペア:

[(1, 9903439), (7, 1414777), (13, 761803), (49, 202111), (91, 108829), (343, 28873), (637, 15547), (2221, 4459)]