12840016

素因数分解:

$2^4\times 7^1\times {\mathrm{114643}}^1$

素因数の和:114658

約数の個数: 20

約数和(自身を含む): 28431712

約数和(自身を除く): 15591696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 114643, 229286, 458572, 802501, 917144, 1605002, 1834288, 3210004, 6420008, 12840016]

約数ペア:

[(1, 12840016), (2, 6420008), (4, 3210004), (7, 1834288), (8, 1605002), (14, 917144), (16, 802501), (28, 458572), (56, 229286), (112, 114643)]