31274243

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 42470400

約数和(自身を除く): 11196157

約数列:

[1, 7, 11, 13, 77, 91, 143, 157, 199, 1001, 1099, 1393, 1727, 2041, 2189, 2587, 12089, 14287, 15323, 18109, 22451, 28457, 31243, 157157, 199199, 218701, 343673, 406159, 2405711, 2843113, 4467749, 31274243]

約数ペア:

[(1, 31274243), (7, 4467749), (11, 2843113), (13, 2405711), (77, 406159), (91, 343673), (143, 218701), (157, 199199), (199, 157157), (1001, 31243), (1099, 28457), (1393, 22451), (1727, 18109), (2041, 15323), (2189, 14287), (2587, 12089)]