20911.000000

素因数分解:

$2^2\times 3^1\times {\mathrm{89}}^1\times {\mathrm{613}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 1547280

約数和(自身を除く): 892596

約数列:

[1, 2, 3, 4, 6, 12, 89, 178, 267, 356, 534, 613, 1068, 1226, 1839, 2452, 3678, 7356, 54557, 109114, 163671, 218228, 327342, 654684]

約数ペア:

[(1, 654684), (2, 327342), (3, 218228), (4, 163671), (6, 109114), (12, 54557), (89, 7356), (178, 3678), (267, 2452), (356, 1839), (534, 1226), (613, 1068)]