20897142

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{497551}}^1$

素因数の和:497563

約数の個数: 16

約数和(自身を含む): 47764992

約数和(自身を除く): 26867850

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 497551, 995102, 1492653, 2985306, 3482857, 6965714, 10448571, 20897142]

約数ペア:

[(1, 20897142), (2, 10448571), (3, 6965714), (6, 3482857), (7, 2985306), (14, 1492653), (21, 995102), (42, 497551)]