19435759

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1979}}^1$

素因数の和:2070

約数の個数: 16

約数和(自身を含む): 23569920

約数和(自身を除く): 4134161

約数列:

[1, 7, 23, 61, 161, 427, 1403, 1979, 9821, 13853, 45517, 120719, 318619, 845033, 2776537, 19435759]

約数ペア:

[(1, 19435759), (7, 2776537), (23, 845033), (61, 318619), (161, 120719), (427, 45517), (1403, 13853), (1979, 9821)]