20659922

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1\times {\mathrm{571}}^1$

素因数の和:881

約数の個数: 16

約数和(自身を含む): 31574400

約数和(自身を除く): 10914478

約数列:

[1, 2, 79, 158, 229, 458, 571, 1142, 18091, 36182, 45109, 90218, 130759, 261518, 10329961, 20659922]

約数ペア:

[(1, 20659922), (2, 10329961), (79, 261518), (158, 130759), (229, 90218), (458, 45109), (571, 36182), (1142, 18091)]