21131682

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2239}}^1$

素因数の和:2279

約数の個数: 48

約数和(自身を含む): 50050560

約数和(自身を除く): 28918878

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 121, 143, 242, 286, 363, 429, 726, 858, 1573, 2239, 3146, 4478, 4719, 6717, 9438, 13434, 24629, 29107, 49258, 58214, 73887, 87321, 147774, 174642, 270919, 320177, 541838, 640354, 812757, 960531, 1625514, 1921062, 3521947, 7043894, 10565841, 21131682]

約数ペア:

[(1, 21131682), (2, 10565841), (3, 7043894), (6, 3521947), (11, 1921062), (13, 1625514), (22, 960531), (26, 812757), (33, 640354), (39, 541838), (66, 320177), (78, 270919), (121, 174642), (143, 147774), (242, 87321), (286, 73887), (363, 58214), (429, 49258), (726, 29107), (858, 24629), (1573, 13434), (2239, 9438), (3146, 6717), (4478, 4719)]