81869333

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{21943}}^1$

素因数の和:22004

約数の個数: 16

約数和(自身を含む): 103224576

約数和(自身を除く): 21355243

約数列:

[1, 7, 13, 41, 91, 287, 533, 3731, 21943, 153601, 285259, 899663, 1996813, 6297641, 11695619, 81869333]

約数ペア:

[(1, 81869333), (7, 11695619), (13, 6297641), (41, 1996813), (91, 899663), (287, 285259), (533, 153601), (3731, 21943)]