21406604

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{7321}}^1$

素因数の和:7385

約数の個数: 24

約数和(自身を含む): 40593168

約数和(自身を除く): 19186564

約数列:

[1, 2, 4, 17, 34, 43, 68, 86, 172, 731, 1462, 2924, 7321, 14642, 29284, 124457, 248914, 314803, 497828, 629606, 1259212, 5351651, 10703302, 21406604]

約数ペア:

[(1, 21406604), (2, 10703302), (4, 5351651), (17, 1259212), (34, 629606), (43, 497828), (68, 314803), (86, 248914), (172, 124457), (731, 29284), (1462, 14642), (2924, 7321)]