21434959

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2161}}^1$

素因数の和:2290

約数の個数: 16

約数和(自身を含む): 26635840

約数和(自身を除く): 5200881

約数列:

[1, 7, 13, 91, 109, 763, 1417, 2161, 9919, 15127, 28093, 196651, 235549, 1648843, 3062137, 21434959]

約数ペア:

[(1, 21434959), (7, 3062137), (13, 1648843), (91, 235549), (109, 196651), (763, 28093), (1417, 15127), (2161, 9919)]