21489291254

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{784109}}^1$

素因数の和:784375

約数の個数: 16

約数和(自身を含む): 32857345440

約数和(自身を除く): 11368054186

約数列:

[1, 2, 71, 142, 193, 386, 13703, 27406, 784109, 1568218, 55671739, 111343478, 151333037, 302666074, 10744645627, 21489291254]

約数ペア:

[(1, 21489291254), (2, 10744645627), (71, 302666074), (142, 151333037), (193, 111343478), (386, 55671739), (13703, 1568218), (27406, 784109)]