18911004

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 144

約数和(自身を含む): 57765120

約数和(自身を除く): 38854116

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 19, 21, 28, 34, 38, 41, 42, 51, 57, 68, 76, 82, 84, 102, 114, 119, 123, 133, 164, 204, 228, 238, 246, 266, 287, 289, 323, 357, 399, 476, 492, 532, 574, 578, 646, 697, 714, 779, 798, 861, 867, 969, 1148, 1156, 1292, 1394, 1428, 1558, 1596, 1722, 1734, 1938, 2023, 2091, 2261, 2337, 2788, 3116, 3444, 3468, 3876, 4046, 4182, 4522, 4674, 4879, 5453, 5491, 6069, 6783, 8092, 8364, 9044, 9348, 9758, 10906, 10982, 11849, 12138, 13243, 13566, 14637, 16359, 16473, 19516, 21812, 21964, 23698, 24276, 26486, 27132, 29274, 32718, 32946, 35547, 38437, 39729, 47396, 52972, 58548, 65436, 65892, 71094, 76874, 79458, 82943, 92701, 115311, 142188, 153748, 158916, 165886, 185402, 225131, 230622, 248829, 278103, 331772, 370804, 450262, 461244, 497658, 556206, 675393, 900524, 995316, 1112412, 1350786, 1575917, 2701572, 3151834, 4727751, 6303668, 9455502, 18911004]

約数ペア:

[(1, 18911004), (2, 9455502), (3, 6303668), (4, 4727751), (6, 3151834), (7, 2701572), (12, 1575917), (14, 1350786), (17, 1112412), (19, 995316), (21, 900524), (28, 675393), (34, 556206), (38, 497658), (41, 461244), (42, 450262), (51, 370804), (57, 331772), (68, 278103), (76, 248829), (82, 230622), (84, 225131), (102, 185402), (114, 165886), (119, 158916), (123, 153748), (133, 142188), (164, 115311), (204, 92701), (228, 82943), (238, 79458), (246, 76874), (266, 71094), (287, 65892), (289, 65436), (323, 58548), (357, 52972), (399, 47396), (476, 39729), (492, 38437), (532, 35547), (574, 32946), (578, 32718), (646, 29274), (697, 27132), (714, 26486), (779, 24276), (798, 23698), (861, 21964), (867, 21812), (969, 19516), (1148, 16473), (1156, 16359), (1292, 14637), (1394, 13566), (1428, 13243), (1558, 12138), (1596, 11849), (1722, 10982), (1734, 10906), (1938, 9758), (2023, 9348), (2091, 9044), (2261, 8364), (2337, 8092), (2788, 6783), (3116, 6069), (3444, 5491), (3468, 5453), (3876, 4879), (4046, 4674), (4182, 4522)]