21000299026

素因数分解:

$2^1\times 7^1\times {\mathrm{1471}}^1\times {\mathrm{1019729}}^1$

素因数の和:1021209

約数の個数: 16

約数和(自身を含む): 36025021440

約数和(自身を除く): 15024722414

約数列:

[1, 2, 7, 14, 1471, 2942, 10297, 20594, 1019729, 2039458, 7138103, 14276206, 1500021359, 3000042718, 10500149513, 21000299026]

約数ペア:

[(1, 21000299026), (2, 10500149513), (7, 3000042718), (14, 1500021359), (1471, 14276206), (2942, 7138103), (10297, 2039458), (20594, 1019729)]