18231993

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:558

約数の個数: 32

約数和(自身を含む): 29388800

約数和(自身を除く): 11156807

約数列:

[1, 3, 9, 13, 27, 39, 117, 127, 351, 381, 409, 1143, 1227, 1651, 3429, 3681, 4953, 5317, 11043, 14859, 15951, 44577, 47853, 51943, 143559, 155829, 467487, 675259, 1402461, 2025777, 6077331, 18231993]

約数ペア:

[(1, 18231993), (3, 6077331), (9, 2025777), (13, 1402461), (27, 675259), (39, 467487), (117, 155829), (127, 143559), (351, 51943), (381, 47853), (409, 44577), (1143, 15951), (1227, 14859), (1651, 11043), (3429, 5317), (3681, 4953)]