31311279

素因数分解:

$3^7\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 47756800

約数和(自身を除く): 16445521

約数列:

[1, 3, 9, 27, 81, 103, 139, 243, 309, 417, 729, 927, 1251, 2187, 2781, 3753, 8343, 11259, 14317, 25029, 33777, 42951, 75087, 101331, 128853, 225261, 303993, 386559, 1159677, 3479031, 10437093, 31311279]

約数ペア:

[(1, 31311279), (3, 10437093), (9, 3479031), (27, 1159677), (81, 386559), (103, 303993), (139, 225261), (243, 128853), (309, 101331), (417, 75087), (729, 42951), (927, 33777), (1251, 25029), (2187, 14317), (2781, 11259), (3753, 8343)]