16989715

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1979}}^1$

素因数の和:2102

約数の個数: 16

約数和(自身を含む): 21811680

約数和(自身を除く): 4821965

約数列:

[1, 5, 17, 85, 101, 505, 1717, 1979, 8585, 9895, 33643, 168215, 199879, 999395, 3397943, 16989715]

約数ペア:

[(1, 16989715), (5, 3397943), (17, 999395), (85, 199879), (101, 168215), (505, 33643), (1717, 9895), (1979, 8585)]