31348471

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{571}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 42172416

約数和(自身を除く): 10823945

約数列:

[1, 7, 11, 23, 31, 77, 161, 217, 253, 341, 571, 713, 1771, 2387, 3997, 4991, 6281, 7843, 13133, 17701, 43967, 54901, 91931, 123907, 144463, 194711, 407123, 1011241, 1362977, 2849861, 4478353, 31348471]

約数ペア:

[(1, 31348471), (7, 4478353), (11, 2849861), (23, 1362977), (31, 1011241), (77, 407123), (161, 194711), (217, 144463), (253, 123907), (341, 91931), (571, 54901), (713, 43967), (1771, 17701), (2387, 13133), (3997, 7843), (4991, 6281)]