20890422

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4481}}^1$

素因数の和:4533

約数の個数: 48

約数和(自身を含む): 53138592

約数和(自身を除く): 32248170

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 63, 74, 111, 126, 222, 259, 333, 518, 666, 777, 1554, 2331, 4481, 4662, 8962, 13443, 26886, 31367, 40329, 62734, 80658, 94101, 165797, 188202, 282303, 331594, 497391, 564606, 994782, 1160579, 1492173, 2321158, 2984346, 3481737, 6963474, 10445211, 20890422]

約数ペア:

[(1, 20890422), (2, 10445211), (3, 6963474), (6, 3481737), (7, 2984346), (9, 2321158), (14, 1492173), (18, 1160579), (21, 994782), (37, 564606), (42, 497391), (63, 331594), (74, 282303), (111, 188202), (126, 165797), (222, 94101), (259, 80658), (333, 62734), (518, 40329), (666, 31367), (777, 26886), (1554, 13443), (2331, 8962), (4481, 4662)]