18815181

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1733}}^1$

素因数の和:1801

約数の個数: 32

約数和(自身を含む): 31961088

約数和(自身を除く): 13145907

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 141, 231, 329, 517, 987, 1551, 1733, 3619, 5199, 10857, 12131, 19063, 36393, 57189, 81451, 133441, 244353, 400323, 570157, 895961, 1710471, 2687883, 6271727, 18815181]

約数ペア:

[(1, 18815181), (3, 6271727), (7, 2687883), (11, 1710471), (21, 895961), (33, 570157), (47, 400323), (77, 244353), (141, 133441), (231, 81451), (329, 57189), (517, 36393), (987, 19063), (1551, 12131), (1733, 10857), (3619, 5199)]