21303107

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{773}}^1$

素因数の和:938

約数の個数: 16

約数和(自身を含む): 25362432

約数和(自身を除く): 4059325

約数列:

[1, 7, 31, 127, 217, 773, 889, 3937, 5411, 23963, 27559, 98171, 167741, 687197, 3043301, 21303107]

約数ペア:

[(1, 21303107), (7, 3043301), (31, 687197), (127, 167741), (217, 98171), (773, 27559), (889, 23963), (3937, 5411)]