20882864

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:417

約数の個数: 40

約数和(自身を含む): 41902080

約数和(自身を除く): 21019216

約数列:

[1, 2, 4, 8, 16, 43, 86, 127, 172, 239, 254, 344, 478, 508, 688, 956, 1016, 1912, 2032, 3824, 5461, 10277, 10922, 20554, 21844, 30353, 41108, 43688, 60706, 82216, 87376, 121412, 164432, 242824, 485648, 1305179, 2610358, 5220716, 10441432, 20882864]

約数ペア:

[(1, 20882864), (2, 10441432), (4, 5220716), (8, 2610358), (16, 1305179), (43, 485648), (86, 242824), (127, 164432), (172, 121412), (239, 87376), (254, 82216), (344, 60706), (478, 43688), (508, 41108), (688, 30353), (956, 21844), (1016, 20554), (1912, 10922), (2032, 10277), (3824, 5461)]