15996987

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 24806400

約数和(自身を除く): 8809413

約数列:

[1, 3, 9, 27, 37, 67, 111, 201, 239, 333, 603, 717, 999, 1809, 2151, 2479, 6453, 7437, 8843, 16013, 22311, 26529, 48039, 66933, 79587, 144117, 238761, 432351, 592481, 1777443, 5332329, 15996987]

約数ペア:

[(1, 15996987), (3, 5332329), (9, 1777443), (27, 592481), (37, 432351), (67, 238761), (111, 144117), (201, 79587), (239, 66933), (333, 48039), (603, 26529), (717, 22311), (999, 16013), (1809, 8843), (2151, 7437), (2479, 6453)]