19902354

素因数分解:

$2^1\times 3^1\times {\mathrm{421}}^1\times {\mathrm{7879}}^1$

素因数の和:8305

約数の個数: 16

約数和(自身を含む): 39904320

約数和(自身を除く): 20001966

約数列:

[1, 2, 3, 6, 421, 842, 1263, 2526, 7879, 15758, 23637, 47274, 3317059, 6634118, 9951177, 19902354]

約数ペア:

[(1, 19902354), (2, 9951177), (3, 6634118), (6, 3317059), (421, 47274), (842, 23637), (1263, 15758), (2526, 7879)]