31157581

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1193}}^1$

素因数の和:1261

約数の個数: 24

約数和(自身を含む): 40018104

約数和(自身を除く): 8860523

約数列:

[1, 7, 13, 41, 49, 91, 287, 533, 637, 1193, 2009, 3731, 8351, 15509, 26117, 48913, 58457, 108563, 342391, 635869, 759941, 2396737, 4451083, 31157581]

約数ペア:

[(1, 31157581), (7, 4451083), (13, 2396737), (41, 759941), (49, 635869), (91, 342391), (287, 108563), (533, 58457), (637, 48913), (1193, 26117), (2009, 15509), (3731, 8351)]