20290039

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6427}}^1$

素因数の和:6486

約数の個数: 16

約数和(自身を含む): 25917696

約数和(自身を除く): 5627657

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 6427, 44989, 70697, 263507, 494879, 1844549, 2898577, 20290039]

約数ペア:

[(1, 20290039), (7, 2898577), (11, 1844549), (41, 494879), (77, 263507), (287, 70697), (451, 44989), (3157, 6427)]