19897683

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 30085440

約数和(自身を除く): 10187757

約数列:

[1, 3, 13, 29, 39, 73, 87, 219, 241, 377, 723, 949, 1131, 2117, 2847, 3133, 6351, 6989, 9399, 17593, 20967, 27521, 52779, 82563, 90857, 228709, 272571, 510197, 686127, 1530591, 6632561, 19897683]

約数ペア:

[(1, 19897683), (3, 6632561), (13, 1530591), (29, 686127), (39, 510197), (73, 272571), (87, 228709), (219, 90857), (241, 82563), (377, 52779), (723, 27521), (949, 20967), (1131, 17593), (2117, 9399), (2847, 6989), (3133, 6351)]