20499105011

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{521}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 26704484352

約数和(自身を除く): 6205379341

約数列:

[1, 7, 11, 41, 77, 103, 121, 287, 451, 521, 721, 847, 1133, 1331, 3157, 3647, 4223, 4961, 5731, 7931, 9317, 12463, 21361, 29561, 34727, 40117, 46453, 53663, 54571, 63041, 87241, 137093, 149527, 234971, 325171, 375641, 381997, 441287, 510983, 590293, 693451, 959651, 1644797, 2200183, 2584681, 3576881, 4132051, 4854157, 5620813, 6493223, 15401281, 18092767, 24202013, 28431491, 39345691, 45452561, 71425453, 169414091, 199020437, 266222143, 499978171, 1863555001, 2928443573, 20499105011]

約数ペア:

[(1, 20499105011), (7, 2928443573), (11, 1863555001), (41, 499978171), (77, 266222143), (103, 199020437), (121, 169414091), (287, 71425453), (451, 45452561), (521, 39345691), (721, 28431491), (847, 24202013), (1133, 18092767), (1331, 15401281), (3157, 6493223), (3647, 5620813), (4223, 4854157), (4961, 4132051), (5731, 3576881), (7931, 2584681), (9317, 2200183), (12463, 1644797), (21361, 959651), (29561, 693451), (34727, 590293), (40117, 510983), (46453, 441287), (53663, 381997), (54571, 375641), (63041, 325171), (87241, 234971), (137093, 149527)]