18733761

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{5641}}^1$

素因数の和:5694

約数の個数: 20

約数和(自身を含む): 28672644

約数和(自身を除く): 9938883

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 5641, 16923, 50769, 152307, 231281, 456921, 693843, 2081529, 6244587, 18733761]

約数ペア:

[(1, 18733761), (3, 6244587), (9, 2081529), (27, 693843), (41, 456921), (81, 231281), (123, 152307), (369, 50769), (1107, 16923), (3321, 5641)]