18722403

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6323}}^1$

素因数の和:6383

約数の個数: 24

約数和(自身を含む): 31569408

約数和(自身を除く): 12847005

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 6323, 18969, 44261, 56907, 132783, 297181, 398349, 891543, 2080267, 2674629, 6240801, 18722403]

約数ペア:

[(1, 18722403), (3, 6240801), (7, 2674629), (9, 2080267), (21, 891543), (47, 398349), (63, 297181), (141, 132783), (329, 56907), (423, 44261), (987, 18969), (2961, 6323)]