20996878

素因数分解:

$2^1\times 7^1\times {\mathrm{1051}}^1\times {\mathrm{1427}}^1$

素因数の和:2487

約数の個数: 16

約数和(自身を含む): 36054144

約数和(自身を除く): 15057266

約数列:

[1, 2, 7, 14, 1051, 1427, 2102, 2854, 7357, 9989, 14714, 19978, 1499777, 2999554, 10498439, 20996878]

約数ペア:

[(1, 20996878), (2, 10498439), (7, 2999554), (14, 1499777), (1051, 19978), (1427, 14714), (2102, 9989), (2854, 7357)]