19771654

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{19891}}^1$

素因数の和:19971

約数の個数: 16

約数和(自身を含む): 34373376

約数和(自身を除く): 14601722

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 19891, 39782, 139237, 278474, 1412261, 2824522, 9885827, 19771654]

約数ペア:

[(1, 19771654), (2, 9885827), (7, 2824522), (14, 1412261), (71, 278474), (142, 139237), (497, 39782), (994, 19891)]