21278604

素因数分解:

$2^2\times 3^1\times {\mathrm{1123}}^1\times {\mathrm{1579}}^1$

素因数の和:2709

約数の個数: 24

約数和(自身を含む): 49725760

約数和(自身を除く): 28447156

約数列:

[1, 2, 3, 4, 6, 12, 1123, 1579, 2246, 3158, 3369, 4492, 4737, 6316, 6738, 9474, 13476, 18948, 1773217, 3546434, 5319651, 7092868, 10639302, 21278604]

約数ペア:

[(1, 21278604), (2, 10639302), (3, 7092868), (4, 5319651), (6, 3546434), (12, 1773217), (1123, 18948), (1579, 13476), (2246, 9474), (3158, 6738), (3369, 6316), (4492, 4737)]