21011036272

素因数分解:

$2^4\times {\mathrm{4519}}^1\times {\mathrm{290593}}^1$

素因数の和:295120

約数の個数: 20

約数和(自身を含む): 40718031280

約数和(自身を除く): 19706995008

約数列:

[1, 2, 4, 8, 16, 4519, 9038, 18076, 36152, 72304, 290593, 581186, 1162372, 2324744, 4649488, 1313189767, 2626379534, 5252759068, 10505518136, 21011036272]

約数ペア:

[(1, 21011036272), (2, 10505518136), (4, 5252759068), (8, 2626379534), (16, 1313189767), (4519, 4649488), (9038, 2324744), (18076, 1162372), (36152, 581186), (72304, 290593)]