20391608

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{193}}^1\times {\mathrm{281}}^1$

素因数の和:527

約数の個数: 32

約数和(自身を含む): 39389760

約数和(自身を除く): 18998152

約数列:

[1, 2, 4, 8, 47, 94, 188, 193, 281, 376, 386, 562, 772, 1124, 1544, 2248, 9071, 13207, 18142, 26414, 36284, 52828, 54233, 72568, 105656, 108466, 216932, 433864, 2548951, 5097902, 10195804, 20391608]

約数ペア:

[(1, 20391608), (2, 10195804), (4, 5097902), (8, 2548951), (47, 433864), (94, 216932), (188, 108466), (193, 105656), (281, 72568), (376, 54233), (386, 52828), (562, 36284), (772, 26414), (1124, 18142), (1544, 13207), (2248, 9071)]