72817791

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 104079360

約数和(自身を除く): 31261569

約数列:

[1, 3, 31, 43, 93, 129, 131, 139, 393, 417, 1333, 3999, 4061, 4309, 5633, 5977, 12183, 12927, 16899, 17931, 18209, 54627, 174623, 185287, 523869, 555861, 564479, 782987, 1693437, 2348961, 24272597, 72817791]

約数ペア:

[(1, 72817791), (3, 24272597), (31, 2348961), (43, 1693437), (93, 782987), (129, 564479), (131, 555861), (139, 523869), (393, 185287), (417, 174623), (1333, 54627), (3999, 18209), (4061, 17931), (4309, 16899), (5633, 12927), (5977, 12183)]