21000455276

素因数分解:

$2^2\times {\mathrm{65129}}^1\times {\mathrm{80611}}^1$

素因数の和:145744

約数の個数: 12

約数和(自身を含む): 36751816920

約数和(自身を除く): 15751361644

約数列:

[1, 2, 4, 65129, 80611, 130258, 161222, 260516, 322444, 5250113819, 10500227638, 21000455276]

約数ペア:

[(1, 21000455276), (2, 10500227638), (4, 5250113819), (65129, 322444), (80611, 260516), (130258, 161222)]