20965144

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{3929}}^1$

素因数の和:3987

約数の個数: 32

約数和(自身を含む): 42444000

約数和(自身を除く): 21478856

約数列:

[1, 2, 4, 8, 23, 29, 46, 58, 92, 116, 184, 232, 667, 1334, 2668, 3929, 5336, 7858, 15716, 31432, 90367, 113941, 180734, 227882, 361468, 455764, 722936, 911528, 2620643, 5241286, 10482572, 20965144]

約数ペア:

[(1, 20965144), (2, 10482572), (4, 5241286), (8, 2620643), (23, 911528), (29, 722936), (46, 455764), (58, 361468), (92, 227882), (116, 180734), (184, 113941), (232, 90367), (667, 31432), (1334, 15716), (2668, 7858), (3929, 5336)]