20910291

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{733}}^1$

素因数の和:1030

約数の個数: 16

約数和(自身を含む): 28784544

約数和(自身を除く): 7874253

約数列:

[1, 3, 37, 111, 257, 733, 771, 2199, 9509, 27121, 28527, 81363, 188381, 565143, 6970097, 20910291]

約数ペア:

[(1, 20910291), (3, 6970097), (37, 565143), (111, 188381), (257, 81363), (733, 28527), (771, 27121), (2199, 9509)]