21291804

素因数分解:

$2^2\times 3^2\times {\mathrm{127}}^1\times {\mathrm{4657}}^1$

素因数の和:4794

約数の個数: 36

約数和(自身を含む): 54256384

約数和(自身を除く): 32964580

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 127, 254, 381, 508, 762, 1143, 1524, 2286, 4572, 4657, 9314, 13971, 18628, 27942, 41913, 55884, 83826, 167652, 591439, 1182878, 1774317, 2365756, 3548634, 5322951, 7097268, 10645902, 21291804]

約数ペア:

[(1, 21291804), (2, 10645902), (3, 7097268), (4, 5322951), (6, 3548634), (9, 2365756), (12, 1774317), (18, 1182878), (36, 591439), (127, 167652), (254, 83826), (381, 55884), (508, 41913), (762, 27942), (1143, 18628), (1524, 13971), (2286, 9314), (4572, 4657)]