19961145

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 37149840

約数和(自身を除く): 17188695

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 97, 153, 255, 269, 291, 485, 765, 807, 873, 1345, 1455, 1649, 2421, 4035, 4365, 4573, 4947, 8245, 12105, 13719, 14841, 22865, 24735, 26093, 41157, 68595, 74205, 78279, 130465, 205785, 234837, 391395, 443581, 1174185, 1330743, 2217905, 3992229, 6653715, 19961145]

約数ペア:

[(1, 19961145), (3, 6653715), (5, 3992229), (9, 2217905), (15, 1330743), (17, 1174185), (45, 443581), (51, 391395), (85, 234837), (97, 205785), (153, 130465), (255, 78279), (269, 74205), (291, 68595), (485, 41157), (765, 26093), (807, 24735), (873, 22865), (1345, 14841), (1455, 13719), (1649, 12105), (2421, 8245), (4035, 4947), (4365, 4573)]