20489139

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{463}}^1$

素因数の和:632

約数の個数: 32

約数和(自身を含む): 33408000

約数和(自身を除く): 12918861

約数列:

[1, 3, 9, 11, 27, 33, 99, 149, 297, 447, 463, 1341, 1389, 1639, 4023, 4167, 4917, 5093, 12501, 14751, 15279, 44253, 45837, 68987, 137511, 206961, 620883, 758857, 1862649, 2276571, 6829713, 20489139]

約数ペア:

[(1, 20489139), (3, 6829713), (9, 2276571), (11, 1862649), (27, 758857), (33, 620883), (99, 206961), (149, 137511), (297, 68987), (447, 45837), (463, 44253), (1341, 15279), (1389, 14751), (1639, 12501), (4023, 5093), (4167, 4917)]