19031355

素因数分解:

$3^4\times 5^1\times 7^3\times {\mathrm{137}}^1$

素因数の和:175

約数の個数: 80

約数和(自身を含む): 40075200

約数和(自身を除く): 21043845

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 137, 147, 189, 245, 315, 343, 405, 411, 441, 567, 685, 735, 945, 959, 1029, 1233, 1323, 1715, 2055, 2205, 2835, 2877, 3087, 3699, 3969, 4795, 5145, 6165, 6615, 6713, 8631, 9261, 11097, 14385, 15435, 18495, 19845, 20139, 25893, 27783, 33565, 43155, 46305, 46991, 55485, 60417, 77679, 100695, 129465, 138915, 140973, 181251, 234955, 302085, 388395, 422919, 543753, 704865, 906255, 1268757, 2114595, 2718765, 3806271, 6343785, 19031355]

約数ペア:

[(1, 19031355), (3, 6343785), (5, 3806271), (7, 2718765), (9, 2114595), (15, 1268757), (21, 906255), (27, 704865), (35, 543753), (45, 422919), (49, 388395), (63, 302085), (81, 234955), (105, 181251), (135, 140973), (137, 138915), (147, 129465), (189, 100695), (245, 77679), (315, 60417), (343, 55485), (405, 46991), (411, 46305), (441, 43155), (567, 33565), (685, 27783), (735, 25893), (945, 20139), (959, 19845), (1029, 18495), (1233, 15435), (1323, 14385), (1715, 11097), (2055, 9261), (2205, 8631), (2835, 6713), (2877, 6615), (3087, 6165), (3699, 5145), (3969, 4795)]