51721390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{738877}}^1$

素因数の和:738891

約数の個数: 16

約数和(自身を含む): 106398432

約数和(自身を除く): 54677042

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 738877, 1477754, 3694385, 5172139, 7388770, 10344278, 25860695, 51721390]

約数ペア:

[(1, 51721390), (2, 25860695), (5, 10344278), (7, 7388770), (10, 5172139), (14, 3694385), (35, 1477754), (70, 738877)]