221736285

素因数分解:

$3^6\times 5^1\times {\mathrm{127}}^1\times {\mathrm{479}}^1$

素因数の和:629

約数の個数: 56

約数和(自身を含む): 402923520

約数和(自身を除く): 181187235

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 127, 135, 243, 381, 405, 479, 635, 729, 1143, 1215, 1437, 1905, 2395, 3429, 3645, 4311, 5715, 7185, 10287, 12933, 17145, 21555, 30861, 38799, 51435, 60833, 64665, 92583, 116397, 154305, 182499, 193995, 304165, 349191, 462915, 547497, 581985, 912495, 1642491, 1745955, 2737485, 4927473, 8212455, 14782419, 24637365, 44347257, 73912095, 221736285]

約数ペア:

[(1, 221736285), (3, 73912095), (5, 44347257), (9, 24637365), (15, 14782419), (27, 8212455), (45, 4927473), (81, 2737485), (127, 1745955), (135, 1642491), (243, 912495), (381, 581985), (405, 547497), (479, 462915), (635, 349191), (729, 304165), (1143, 193995), (1215, 182499), (1437, 154305), (1905, 116397), (2395, 92583), (3429, 64665), (3645, 60833), (4311, 51435), (5715, 38799), (7185, 30861), (10287, 21555), (12933, 17145)]