18131715

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{2741}}^1$

素因数の和:2769

約数の個数: 48

約数和(自身を含む): 37510560

約数和(自身を除く): 19378845

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 735, 945, 1323, 2205, 2741, 6615, 8223, 13705, 19187, 24669, 41115, 57561, 74007, 95935, 123345, 134309, 172683, 287805, 370035, 402927, 518049, 671545, 863415, 1208781, 2014635, 2590245, 3626343, 6043905, 18131715]

約数ペア:

[(1, 18131715), (3, 6043905), (5, 3626343), (7, 2590245), (9, 2014635), (15, 1208781), (21, 863415), (27, 671545), (35, 518049), (45, 402927), (49, 370035), (63, 287805), (105, 172683), (135, 134309), (147, 123345), (189, 95935), (245, 74007), (315, 57561), (441, 41115), (735, 24669), (945, 19187), (1323, 13705), (2205, 8223), (2741, 6615)]