21161248

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{127}}^2$

素因数の和:305

約数の個数: 36

約数和(自身を含む): 43016022

約数和(自身を除く): 21854774

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 127, 164, 254, 328, 508, 656, 1016, 1312, 2032, 4064, 5207, 10414, 16129, 20828, 32258, 41656, 64516, 83312, 129032, 166624, 258064, 516128, 661289, 1322578, 2645156, 5290312, 10580624, 21161248]

約数ペア:

[(1, 21161248), (2, 10580624), (4, 5290312), (8, 2645156), (16, 1322578), (32, 661289), (41, 516128), (82, 258064), (127, 166624), (164, 129032), (254, 83312), (328, 64516), (508, 41656), (656, 32258), (1016, 20828), (1312, 16129), (2032, 10414), (4064, 5207)]