16991177

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{227}}^1$

素因数の和:305

約数の個数: 24

約数和(自身を含む): 21278784

約数和(自身を除く): 4287607

約数列:

[1, 7, 17, 37, 119, 227, 259, 289, 629, 1589, 2023, 3859, 4403, 8399, 10693, 27013, 58793, 65603, 74851, 142783, 459221, 999481, 2427311, 16991177]

約数ペア:

[(1, 16991177), (7, 2427311), (17, 999481), (37, 459221), (119, 142783), (227, 74851), (259, 65603), (289, 58793), (629, 27013), (1589, 10693), (2023, 8399), (3859, 4403)]