20645338

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{11257}}^1$

素因数の和:11397

約数の個数: 16

約数和(自身を含む): 35665344

約数和(自身を除く): 15020006

約数列:

[1, 2, 7, 14, 131, 262, 917, 1834, 11257, 22514, 78799, 157598, 1474667, 2949334, 10322669, 20645338]

約数ペア:

[(1, 20645338), (2, 10322669), (7, 2949334), (14, 1474667), (131, 157598), (262, 78799), (917, 22514), (1834, 11257)]