19971690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{665723}}^1$

素因数の和:665733

約数の個数: 16

約数和(自身を含む): 47932128

約数和(自身を除く): 27960438

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 665723, 1331446, 1997169, 3328615, 3994338, 6657230, 9985845, 19971690]

約数ペア:

[(1, 19971690), (2, 9985845), (3, 6657230), (5, 3994338), (6, 3328615), (10, 1997169), (15, 1331446), (30, 665723)]