2009000018

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{307}}^1\times {\mathrm{24977}}^1$

素因数の和:25417

約数の個数: 16

約数和(自身を含む): 3046516704

約数和(自身を除く): 1037516686

約数列:

[1, 2, 131, 262, 307, 614, 24977, 40217, 49954, 80434, 3271987, 6543974, 7667939, 15335878, 1004500009, 2009000018]

約数ペア:

[(1, 2009000018), (2, 1004500009), (131, 15335878), (262, 7667939), (307, 6543974), (614, 3271987), (24977, 80434), (40217, 49954)]