21127769

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{229}}^1$

素因数の和:440

約数の個数: 16

約数和(自身を含む): 23493120

約数和(自身を除く): 2365351

約数列:

[1, 13, 47, 151, 229, 611, 1963, 2977, 7097, 10763, 34579, 92261, 139919, 449527, 1625213, 21127769]

約数ペア:

[(1, 21127769), (13, 1625213), (47, 449527), (151, 139919), (229, 92261), (611, 34579), (1963, 10763), (2977, 7097)]