20384408

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5387}}^1$

素因数の和:5447

約数の個数: 32

約数和(自身を含む): 42672960

約数和(自身を除く): 22288552

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 5387, 10774, 21548, 43096, 59257, 118514, 231641, 237028, 463282, 474056, 926564, 1853128, 2548051, 5096102, 10192204, 20384408]

約数ペア:

[(1, 20384408), (2, 10192204), (4, 5096102), (8, 2548051), (11, 1853128), (22, 926564), (43, 474056), (44, 463282), (86, 237028), (88, 231641), (172, 118514), (344, 59257), (473, 43096), (946, 21548), (1892, 10774), (3784, 5387)]