20812631

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{503}}^1$

素因数の和:790

約数の個数: 16

約数和(自身を含む): 24966144

約数和(自身を除く): 4153513

約数列:

[1, 7, 23, 161, 257, 503, 1799, 3521, 5911, 11569, 41377, 80983, 129271, 904897, 2973233, 20812631]

約数ペア:

[(1, 20812631), (7, 2973233), (23, 904897), (161, 129271), (257, 80983), (503, 41377), (1799, 11569), (3521, 5911)]