21789540

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{40351}}^1$

素因数の和:40369

約数の個数: 48

約数和(自身を含む): 67791360

約数和(自身を除く): 46001820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 40351, 80702, 121053, 161404, 201755, 242106, 363159, 403510, 484212, 605265, 726318, 807020, 1089477, 1210530, 1452636, 1815795, 2178954, 2421060, 3631590, 4357908, 5447385, 7263180, 10894770, 21789540]

約数ペア:

[(1, 21789540), (2, 10894770), (3, 7263180), (4, 5447385), (5, 4357908), (6, 3631590), (9, 2421060), (10, 2178954), (12, 1815795), (15, 1452636), (18, 1210530), (20, 1089477), (27, 807020), (30, 726318), (36, 605265), (45, 484212), (54, 403510), (60, 363159), (90, 242106), (108, 201755), (135, 161404), (180, 121053), (270, 80702), (540, 40351)]