20178117

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{2333}}^1$

素因数の和:2401

約数の個数: 18

約数和(自身を含む): 30129606

約数和(自身を除く): 9951489

約数列:

[1, 3, 9, 31, 93, 279, 961, 2333, 2883, 6999, 8649, 20997, 72323, 216969, 650907, 2242013, 6726039, 20178117]

約数ペア:

[(1, 20178117), (3, 6726039), (9, 2242013), (31, 650907), (93, 216969), (279, 72323), (961, 20997), (2333, 8649), (2883, 6999)]