19720695

素因数分解:

$3^1\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1567}}^1$

素因数の和:2414

約数の個数: 16

約数和(自身を含む): 31610880

約数和(自身を除く): 11890185

約数列:

[1, 3, 5, 15, 839, 1567, 2517, 4195, 4701, 7835, 12585, 23505, 1314713, 3944139, 6573565, 19720695]

約数ペア:

[(1, 19720695), (3, 6573565), (5, 3944139), (15, 1314713), (839, 23505), (1567, 12585), (2517, 7835), (4195, 4701)]