18219879

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{2267}}^1$

素因数の和:2339

約数の個数: 24

約数和(自身を含む): 28304640

約数和(自身を除く): 10084761

約数列:

[1, 3, 9, 19, 47, 57, 141, 171, 423, 893, 2267, 2679, 6801, 8037, 20403, 43073, 106549, 129219, 319647, 387657, 958941, 2024431, 6073293, 18219879]

約数ペア:

[(1, 18219879), (3, 6073293), (9, 2024431), (19, 958941), (47, 387657), (57, 319647), (141, 129219), (171, 106549), (423, 43073), (893, 20403), (2267, 8037), (2679, 6801)]