21000886414067

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{431}}^1\times {\mathrm{2057597}}^1$

素因数の和:2058251

約数の個数: 32

約数和(自身を含む): 25599811276800

約数和(自身を除く): 4598924862733

約数列:

[1, 7, 17, 119, 199, 431, 1393, 3017, 3383, 7327, 23681, 51289, 85769, 600383, 1458073, 2057597, 10206511, 14403179, 34979149, 244854043, 409461803, 886824307, 2866232621, 6207770149, 6960850651, 15076013219, 48725954557, 105532092533, 176478037093, 1235346259651, 3000126630581, 21000886414067]

約数ペア:

[(1, 21000886414067), (7, 3000126630581), (17, 1235346259651), (119, 176478037093), (199, 105532092533), (431, 48725954557), (1393, 15076013219), (3017, 6960850651), (3383, 6207770149), (7327, 2866232621), (23681, 886824307), (51289, 409461803), (85769, 244854043), (600383, 34979149), (1458073, 14403179), (2057597, 10206511)]