19803564

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1163}}^1$

素因数の和:1227

約数の個数: 72

約数和(自身を含む): 55927872

約数和(自身を除く): 36124308

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 43, 44, 66, 86, 99, 129, 132, 172, 198, 258, 387, 396, 473, 516, 774, 946, 1163, 1419, 1548, 1892, 2326, 2838, 3489, 4257, 4652, 5676, 6978, 8514, 10467, 12793, 13956, 17028, 20934, 25586, 38379, 41868, 50009, 51172, 76758, 100018, 115137, 150027, 153516, 200036, 230274, 300054, 450081, 460548, 550099, 600108, 900162, 1100198, 1650297, 1800324, 2200396, 3300594, 4950891, 6601188, 9901782, 19803564]

約数ペア:

[(1, 19803564), (2, 9901782), (3, 6601188), (4, 4950891), (6, 3300594), (9, 2200396), (11, 1800324), (12, 1650297), (18, 1100198), (22, 900162), (33, 600108), (36, 550099), (43, 460548), (44, 450081), (66, 300054), (86, 230274), (99, 200036), (129, 153516), (132, 150027), (172, 115137), (198, 100018), (258, 76758), (387, 51172), (396, 50009), (473, 41868), (516, 38379), (774, 25586), (946, 20934), (1163, 17028), (1419, 13956), (1548, 12793), (1892, 10467), (2326, 8514), (2838, 6978), (3489, 5676), (4257, 4652)]