16720076

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{11579}}^1$

素因数の和:11621

約数の個数: 18

約数和(自身を含む): 30883860

約数和(自身を除く): 14163784

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 11579, 23158, 46316, 220001, 440002, 880004, 4180019, 8360038, 16720076]

約数ペア:

[(1, 16720076), (2, 8360038), (4, 4180019), (19, 880004), (38, 440002), (76, 220001), (361, 46316), (722, 23158), (1444, 11579)]