21295559

素因数分解:

${\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:286

約数の個数: 16

約数和(自身を含む): 22643712

約数和(自身を除く): 1348153

約数列:

[1, 47, 53, 83, 103, 2491, 3901, 4399, 4841, 5459, 8549, 206753, 256573, 401803, 453097, 21295559]

約数ペア:

[(1, 21295559), (47, 453097), (53, 401803), (83, 256573), (103, 206753), (2491, 8549), (3901, 5459), (4399, 4841)]