19668278

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:548

約数の個数: 32

約数和(自身を含む): 35002368

約数和(自身を除く): 15334090

約数列:

[1, 2, 7, 14, 47, 71, 94, 142, 329, 421, 497, 658, 842, 994, 2947, 3337, 5894, 6674, 19787, 23359, 29891, 39574, 46718, 59782, 138509, 209237, 277018, 418474, 1404877, 2809754, 9834139, 19668278]

約数ペア:

[(1, 19668278), (2, 9834139), (7, 2809754), (14, 1404877), (47, 418474), (71, 277018), (94, 209237), (142, 138509), (329, 59782), (421, 46718), (497, 39574), (658, 29891), (842, 23359), (994, 19787), (2947, 6674), (3337, 5894)]