20874291242

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21000293}}^1$

素因数の和:21000373

約数の個数: 16

約数和(自身を含む): 36288508032

約数和(自身を除く): 15414216790

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 21000293, 42000586, 147002051, 294004102, 1491020803, 2982041606, 10437145621, 20874291242]

約数ペア:

[(1, 20874291242), (2, 10437145621), (7, 2982041606), (14, 1491020803), (71, 294004102), (142, 147002051), (497, 42000586), (994, 21000293)]