20979490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2801}}^1$

素因数の和:2922

約数の個数: 32

約数和(自身を含む): 43576704

約数和(自身を除く): 22597214

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 107, 214, 535, 749, 1070, 1498, 2801, 3745, 5602, 7490, 14005, 19607, 28010, 39214, 98035, 196070, 299707, 599414, 1498535, 2097949, 2997070, 4195898, 10489745, 20979490]

約数ペア:

[(1, 20979490), (2, 10489745), (5, 4195898), (7, 2997070), (10, 2097949), (14, 1498535), (35, 599414), (70, 299707), (107, 196070), (214, 98035), (535, 39214), (749, 28010), (1070, 19607), (1498, 14005), (2801, 7490), (3745, 5602)]