31408533

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2081}}^1$

素因数の和:2146

約数の個数: 32

約数和(自身を含む): 51300480

約数和(自身を除く): 19891947

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 351, 387, 559, 1161, 1677, 2081, 5031, 6243, 15093, 18729, 27053, 56187, 81159, 89483, 243477, 268449, 730431, 805347, 1163279, 2416041, 3489837, 10469511, 31408533]

約数ペア:

[(1, 31408533), (3, 10469511), (9, 3489837), (13, 2416041), (27, 1163279), (39, 805347), (43, 730431), (117, 268449), (129, 243477), (351, 89483), (387, 81159), (559, 56187), (1161, 27053), (1677, 18729), (2081, 15093), (5031, 6243)]