19973966

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{2063}}^1$

素因数の和:2215

約数の個数: 16

約数和(自身を含む): 30910464

約数和(自身を除く): 10936498

約数列:

[1, 2, 47, 94, 103, 206, 2063, 4126, 4841, 9682, 96961, 193922, 212489, 424978, 9986983, 19973966]

約数ペア:

[(1, 19973966), (2, 9986983), (47, 424978), (94, 212489), (103, 193922), (206, 96961), (2063, 9682), (4126, 4841)]