21894138

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:513

約数の個数: 80

約数和(自身を含む): 57499200

約数和(自身を除く): 35605062

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 43, 54, 63, 81, 86, 126, 129, 162, 189, 258, 301, 378, 387, 449, 567, 602, 774, 898, 903, 1134, 1161, 1347, 1806, 2322, 2694, 2709, 3143, 3483, 4041, 5418, 6286, 6966, 8082, 8127, 9429, 12123, 16254, 18858, 19307, 24246, 24381, 28287, 36369, 38614, 48762, 56574, 57921, 72738, 84861, 115842, 135149, 169722, 173763, 254583, 270298, 347526, 405447, 509166, 521289, 810894, 1042578, 1216341, 1563867, 2432682, 3127734, 3649023, 7298046, 10947069, 21894138]

約数ペア:

[(1, 21894138), (2, 10947069), (3, 7298046), (6, 3649023), (7, 3127734), (9, 2432682), (14, 1563867), (18, 1216341), (21, 1042578), (27, 810894), (42, 521289), (43, 509166), (54, 405447), (63, 347526), (81, 270298), (86, 254583), (126, 173763), (129, 169722), (162, 135149), (189, 115842), (258, 84861), (301, 72738), (378, 57921), (387, 56574), (449, 48762), (567, 38614), (602, 36369), (774, 28287), (898, 24381), (903, 24246), (1134, 19307), (1161, 18858), (1347, 16254), (1806, 12123), (2322, 9429), (2694, 8127), (2709, 8082), (3143, 6966), (3483, 6286), (4041, 5418)]