21154328

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1901}}^1$

素因数の和:2027

約数の個数: 32

約数和(自身を含む): 43137360

約数和(自身を除く): 21983032

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 107, 214, 428, 856, 1391, 1901, 2782, 3802, 5564, 7604, 11128, 15208, 24713, 49426, 98852, 197704, 203407, 406814, 813628, 1627256, 2644291, 5288582, 10577164, 21154328]

約数ペア:

[(1, 21154328), (2, 10577164), (4, 5288582), (8, 2644291), (13, 1627256), (26, 813628), (52, 406814), (104, 203407), (107, 197704), (214, 98852), (428, 49426), (856, 24713), (1391, 15208), (1901, 11128), (2782, 7604), (3802, 5564)]