28991001

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{599}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 44755200

約数和(自身を除く): 15764199

約数列:

[1, 3, 13, 17, 39, 51, 73, 219, 221, 599, 663, 949, 1241, 1797, 2847, 3723, 7787, 10183, 16133, 23361, 30549, 43727, 48399, 131181, 132379, 397137, 568451, 743359, 1705353, 2230077, 9663667, 28991001]

約数ペア:

[(1, 28991001), (3, 9663667), (13, 2230077), (17, 1705353), (39, 743359), (51, 568451), (73, 397137), (219, 132379), (221, 131181), (599, 48399), (663, 43727), (949, 30549), (1241, 23361), (1797, 16133), (2847, 10183), (3723, 7787)]