21056777

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{463}}^1$

素因数の和:632

約数の個数: 16

約数和(自身を含む): 24721920

約数和(自身を除く): 3665143

約数列:

[1, 7, 73, 89, 463, 511, 623, 3241, 6497, 33799, 41207, 45479, 236593, 288449, 3008111, 21056777]

約数ペア:

[(1, 21056777), (7, 3008111), (73, 288449), (89, 236593), (463, 45479), (511, 41207), (623, 33799), (3241, 6497)]