259197281

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{18089}}^1$

素因数の和:18208

約数の個数: 16

約数和(自身を含む): 312595200

約数和(自身を除く): 53397919

約数列:

[1, 7, 23, 89, 161, 623, 2047, 14329, 18089, 126623, 416047, 1609921, 2912329, 11269447, 37028183, 259197281]

約数ペア:

[(1, 259197281), (7, 37028183), (23, 11269447), (89, 2912329), (161, 1609921), (623, 416047), (2047, 126623), (14329, 18089)]