21972564

素因数分解:

$2^2\times 3^2\times {\mathrm{139}}^1\times {\mathrm{4391}}^1$

素因数の和:4540

約数の個数: 36

約数和(自身を含む): 55954080

約数和(自身を除く): 33981516

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 278, 417, 556, 834, 1251, 1668, 2502, 4391, 5004, 8782, 13173, 17564, 26346, 39519, 52692, 79038, 158076, 610349, 1220698, 1831047, 2441396, 3662094, 5493141, 7324188, 10986282, 21972564]

約数ペア:

[(1, 21972564), (2, 10986282), (3, 7324188), (4, 5493141), (6, 3662094), (9, 2441396), (12, 1831047), (18, 1220698), (36, 610349), (139, 158076), (278, 79038), (417, 52692), (556, 39519), (834, 26346), (1251, 17564), (1668, 13173), (2502, 8782), (4391, 5004)]