19728835

素因数分解:

$5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{5581}}^1$

素因数の和:5694

約数の個数: 16

約数和(自身を含む): 27329472

約数和(自身を除く): 7600637

約数列:

[1, 5, 7, 35, 101, 505, 707, 3535, 5581, 27905, 39067, 195335, 563681, 2818405, 3945767, 19728835]

約数ペア:

[(1, 19728835), (5, 3945767), (7, 2818405), (35, 563681), (101, 195335), (505, 39067), (707, 27905), (3535, 5581)]