18935850531

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1\times {\mathrm{29027}}^1$

素因数の和:29475

約数の個数: 32

約数和(自身を含む): 27894746880

約数和(自身を除く): 8958896349

約数列:

[1, 3, 13, 39, 43, 129, 389, 559, 1167, 1677, 5057, 15171, 16727, 29027, 50181, 87081, 217451, 377351, 652353, 1132053, 1248161, 3744483, 11291503, 16226093, 33874509, 48678279, 146789539, 440368617, 485534629, 1456603887, 6311950177, 18935850531]

約数ペア:

[(1, 18935850531), (3, 6311950177), (13, 1456603887), (39, 485534629), (43, 440368617), (129, 146789539), (389, 48678279), (559, 33874509), (1167, 16226093), (1677, 11291503), (5057, 3744483), (15171, 1248161), (16727, 1132053), (29027, 652353), (50181, 377351), (87081, 217451)]