21891078

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:95

約数の個数: 108

約数和(自身を含む): 57368220

約数和(自身を除く): 35477142

約数列:

[1, 2, 3, 6, 9, 11, 18, 19, 22, 23, 33, 38, 46, 57, 66, 69, 99, 114, 121, 138, 171, 198, 207, 209, 242, 253, 342, 363, 414, 418, 437, 506, 529, 627, 726, 759, 874, 1058, 1089, 1254, 1311, 1518, 1587, 1881, 2178, 2277, 2299, 2622, 2783, 3174, 3762, 3933, 4554, 4598, 4761, 4807, 5566, 5819, 6897, 7866, 8349, 9522, 9614, 10051, 11638, 13794, 14421, 16698, 17457, 20102, 20691, 25047, 28842, 30153, 34914, 41382, 43263, 50094, 52371, 52877, 60306, 64009, 86526, 90459, 104742, 105754, 110561, 128018, 158631, 180918, 192027, 221122, 317262, 331683, 384054, 475893, 576081, 663366, 951786, 995049, 1152162, 1216171, 1990098, 2432342, 3648513, 7297026, 10945539, 21891078]

約数ペア:

[(1, 21891078), (2, 10945539), (3, 7297026), (6, 3648513), (9, 2432342), (11, 1990098), (18, 1216171), (19, 1152162), (22, 995049), (23, 951786), (33, 663366), (38, 576081), (46, 475893), (57, 384054), (66, 331683), (69, 317262), (99, 221122), (114, 192027), (121, 180918), (138, 158631), (171, 128018), (198, 110561), (207, 105754), (209, 104742), (242, 90459), (253, 86526), (342, 64009), (363, 60306), (414, 52877), (418, 52371), (437, 50094), (506, 43263), (529, 41382), (627, 34914), (726, 30153), (759, 28842), (874, 25047), (1058, 20691), (1089, 20102), (1254, 17457), (1311, 16698), (1518, 14421), (1587, 13794), (1881, 11638), (2178, 10051), (2277, 9614), (2299, 9522), (2622, 8349), (2783, 7866), (3174, 6897), (3762, 5819), (3933, 5566), (4554, 4807), (4598, 4761)]