21042605

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{593}}^1$

素因数の和:796

約数の個数: 16

約数和(自身を含む): 26002944

約数和(自身を除く): 4960339

約数列:

[1, 5, 47, 151, 235, 593, 755, 2965, 7097, 27871, 35485, 89543, 139355, 447715, 4208521, 21042605]

約数ペア:

[(1, 21042605), (5, 4208521), (47, 447715), (151, 139355), (235, 89543), (593, 35485), (755, 27871), (2965, 7097)]