16855895

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{20939}}^1$

素因数の和:20974

約数の個数: 16

約数和(自身を含む): 24122880

約数和(自身を除く): 7266985

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 20939, 104695, 146573, 481597, 732865, 2407985, 3371179, 16855895]

約数ペア:

[(1, 16855895), (5, 3371179), (7, 2407985), (23, 732865), (35, 481597), (115, 146573), (161, 104695), (805, 20939)]