18636549

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 27648000

約数和(自身を除く): 9011451

約数列:

[1, 3, 19, 31, 53, 57, 93, 159, 199, 589, 597, 1007, 1643, 1767, 3021, 3781, 4929, 6169, 10547, 11343, 18507, 31217, 31641, 93651, 117211, 200393, 326957, 351633, 601179, 980871, 6212183, 18636549]

約数ペア:

[(1, 18636549), (3, 6212183), (19, 980871), (31, 601179), (53, 351633), (57, 326957), (93, 200393), (159, 117211), (199, 93651), (589, 31641), (597, 31217), (1007, 18507), (1643, 11343), (1767, 10547), (3021, 6169), (3781, 4929)]