19845231

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{21977}}^1$

素因数の和:22030

約数の個数: 16

約数和(自身を含む): 30945024

約数和(自身を除く): 11099793

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 21977, 65931, 153839, 461517, 945011, 2835033, 6615077, 19845231]

約数ペア:

[(1, 19845231), (3, 6615077), (7, 2835033), (21, 945011), (43, 461517), (129, 153839), (301, 65931), (903, 21977)]