19980478

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{1697}}^1$

素因数の和:1764

約数の個数: 24

約数和(自身を含む): 35494992

約数和(自身を除く): 15514514

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 841, 1682, 1697, 3394, 5887, 11774, 11879, 23758, 49213, 98426, 344491, 688982, 1427177, 2854354, 9990239, 19980478]

約数ペア:

[(1, 19980478), (2, 9990239), (7, 2854354), (14, 1427177), (29, 688982), (58, 344491), (203, 98426), (406, 49213), (841, 23758), (1682, 11879), (1697, 11774), (3394, 5887)]