20877890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{189799}}^1$

素因数の和:189817

約数の個数: 16

約数和(自身を含む): 40996800

約数和(自身を除く): 20118910

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 189799, 379598, 948995, 1897990, 2087789, 4175578, 10438945, 20877890]

約数ペア:

[(1, 20877890), (2, 10438945), (5, 4175578), (10, 2087789), (11, 1897990), (22, 948995), (55, 379598), (110, 189799)]