217680507

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{4919}}^1$

素因数の和:5088

約数の個数: 32

約数和(自身を含む): 354240000

約数和(自身を除く): 136559493

約数列:

[1, 3, 9, 11, 27, 33, 99, 149, 297, 447, 1341, 1639, 4023, 4917, 4919, 14751, 14757, 44253, 44271, 54109, 132813, 162327, 486981, 732931, 1460943, 2198793, 6596379, 8062241, 19789137, 24186723, 72560169, 217680507]

約数ペア:

[(1, 217680507), (3, 72560169), (9, 24186723), (11, 19789137), (27, 8062241), (33, 6596379), (99, 2198793), (149, 1460943), (297, 732931), (447, 486981), (1341, 162327), (1639, 132813), (4023, 54109), (4917, 44271), (4919, 44253), (14751, 14757)]