19913454

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:294

約数の個数: 72

約数和(自身を含む): 48799296

約数和(自身を除く): 28885842

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 41, 66, 82, 99, 121, 123, 198, 223, 242, 246, 363, 369, 446, 451, 669, 726, 738, 902, 1089, 1338, 1353, 2007, 2178, 2453, 2706, 4014, 4059, 4906, 4961, 7359, 8118, 9143, 9922, 14718, 14883, 18286, 22077, 26983, 27429, 29766, 44154, 44649, 53966, 54858, 80949, 82287, 89298, 100573, 161898, 164574, 201146, 242847, 301719, 485694, 603438, 905157, 1106303, 1810314, 2212606, 3318909, 6637818, 9956727, 19913454]

約数ペア:

[(1, 19913454), (2, 9956727), (3, 6637818), (6, 3318909), (9, 2212606), (11, 1810314), (18, 1106303), (22, 905157), (33, 603438), (41, 485694), (66, 301719), (82, 242847), (99, 201146), (121, 164574), (123, 161898), (198, 100573), (223, 89298), (242, 82287), (246, 80949), (363, 54858), (369, 53966), (446, 44649), (451, 44154), (669, 29766), (726, 27429), (738, 26983), (902, 22077), (1089, 18286), (1338, 14883), (1353, 14718), (2007, 9922), (2178, 9143), (2453, 8118), (2706, 7359), (4014, 4961), (4059, 4906)]