20907288

素因数分解:

$2^3\times 3^3\times {\mathrm{43}}^1\times {\mathrm{2251}}^1$

素因数の和:2309

約数の個数: 64

約数和(自身を含む): 59452800

約数和(自身を除く): 38545512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 43, 54, 72, 86, 108, 129, 172, 216, 258, 344, 387, 516, 774, 1032, 1161, 1548, 2251, 2322, 3096, 4502, 4644, 6753, 9004, 9288, 13506, 18008, 20259, 27012, 40518, 54024, 60777, 81036, 96793, 121554, 162072, 193586, 243108, 290379, 387172, 486216, 580758, 774344, 871137, 1161516, 1742274, 2323032, 2613411, 3484548, 5226822, 6969096, 10453644, 20907288]

約数ペア:

[(1, 20907288), (2, 10453644), (3, 6969096), (4, 5226822), (6, 3484548), (8, 2613411), (9, 2323032), (12, 1742274), (18, 1161516), (24, 871137), (27, 774344), (36, 580758), (43, 486216), (54, 387172), (72, 290379), (86, 243108), (108, 193586), (129, 162072), (172, 121554), (216, 96793), (258, 81036), (344, 60777), (387, 54024), (516, 40518), (774, 27012), (1032, 20259), (1161, 18008), (1548, 13506), (2251, 9288), (2322, 9004), (3096, 6753), (4502, 4644)]