21137144

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4241}}^1$

素因数の和:4343

約数の個数: 32

約数和(自身を含む): 45813600

約数和(自身を除く): 24676456

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4241, 4984, 8482, 16964, 29687, 33928, 59374, 118748, 237496, 377449, 754898, 1509796, 2642143, 3019592, 5284286, 10568572, 21137144]

約数ペア:

[(1, 21137144), (2, 10568572), (4, 5284286), (7, 3019592), (8, 2642143), (14, 1509796), (28, 754898), (56, 377449), (89, 237496), (178, 118748), (356, 59374), (623, 33928), (712, 29687), (1246, 16964), (2492, 8482), (4241, 4984)]