21464905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{439}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 32440320

約数和(自身を除く): 10975415

約数列:

[1, 5, 7, 11, 35, 55, 77, 127, 385, 439, 635, 889, 1397, 2195, 3073, 4445, 4829, 6985, 9779, 15365, 24145, 33803, 48895, 55753, 169015, 278765, 390271, 613283, 1951355, 3066415, 4292981, 21464905]

約数ペア:

[(1, 21464905), (5, 4292981), (7, 3066415), (11, 1951355), (35, 613283), (55, 390271), (77, 278765), (127, 169015), (385, 55753), (439, 48895), (635, 33803), (889, 24145), (1397, 15365), (2195, 9779), (3073, 6985), (4445, 4829)]