20397986

素因数分解:

$2^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{9649}}^1$

素因数の和:9809

約数の個数: 16

約数和(自身を含む): 35203200

約数和(自身を除く): 14805214

約数列:

[1, 2, 7, 14, 151, 302, 1057, 2114, 9649, 19298, 67543, 135086, 1456999, 2913998, 10198993, 20397986]

約数ペア:

[(1, 20397986), (2, 10198993), (7, 2913998), (14, 1456999), (151, 135086), (302, 67543), (1057, 19298), (2114, 9649)]