20289704

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{773}}^1$

素因数の和:989

約数の個数: 32

約数和(自身を含む): 40542120

約数和(自身を除く): 20252416

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 193, 386, 772, 773, 1544, 1546, 3092, 3281, 6184, 6562, 13124, 13141, 26248, 26282, 52564, 105128, 149189, 298378, 596756, 1193512, 2536213, 5072426, 10144852, 20289704]

約数ペア:

[(1, 20289704), (2, 10144852), (4, 5072426), (8, 2536213), (17, 1193512), (34, 596756), (68, 298378), (136, 149189), (193, 105128), (386, 52564), (772, 26282), (773, 26248), (1544, 13141), (1546, 13124), (3092, 6562), (3281, 6184)]