21157286

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{3511}}^1$

素因数の和:3667

約数の個数: 16

約数和(自身を含む): 33378048

約数和(自身を除く): 12220762

約数列:

[1, 2, 23, 46, 131, 262, 3013, 3511, 6026, 7022, 80753, 161506, 459941, 919882, 10578643, 21157286]

約数ペア:

[(1, 21157286), (2, 10578643), (23, 919882), (46, 459941), (131, 161506), (262, 80753), (3013, 7022), (3511, 6026)]