31291988

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{12281}}^1$

素因数の和:12312

約数の個数: 36

約数和(自身を含む): 68607252

約数和(自身を除く): 37315264

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 12281, 24562, 49124, 85967, 159653, 171934, 319306, 343868, 601769, 638612, 1117571, 1203538, 2235142, 2407076, 4470284, 7822997, 15645994, 31291988]

約数ペア:

[(1, 31291988), (2, 15645994), (4, 7822997), (7, 4470284), (13, 2407076), (14, 2235142), (26, 1203538), (28, 1117571), (49, 638612), (52, 601769), (91, 343868), (98, 319306), (182, 171934), (196, 159653), (364, 85967), (637, 49124), (1274, 24562), (2548, 12281)]