21006787208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{12457}}^1\times {\mathrm{19163}}^1$

素因数の和:31637

約数の個数: 32

約数和(自身を含む): 42974120160

約数和(自身を除く): 21967332952

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 12457, 19163, 24914, 38326, 49828, 76652, 99656, 137027, 153304, 210793, 274054, 421586, 548108, 843172, 1096216, 1686344, 238713491, 477426982, 954853964, 1909707928, 2625848401, 5251696802, 10503393604, 21006787208]

約数ペア:

[(1, 21006787208), (2, 10503393604), (4, 5251696802), (8, 2625848401), (11, 1909707928), (22, 954853964), (44, 477426982), (88, 238713491), (12457, 1686344), (19163, 1096216), (24914, 843172), (38326, 548108), (49828, 421586), (76652, 274054), (99656, 210793), (137027, 153304)]