21236813

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{677}}^1$

素因数の和:836

約数の個数: 16

約数和(自身を含む): 24299520

約数和(自身を除く): 3062707

約数列:

[1, 13, 19, 127, 247, 677, 1651, 2413, 8801, 12863, 31369, 85979, 167219, 1117727, 1633601, 21236813]

約数ペア:

[(1, 21236813), (13, 1633601), (19, 1117727), (127, 167219), (247, 85979), (677, 31369), (1651, 12863), (2413, 8801)]