19723788

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 61641216

約数和(自身を除く): 41917428

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 41, 42, 46, 63, 69, 82, 83, 84, 92, 123, 126, 138, 161, 164, 166, 207, 246, 249, 252, 276, 287, 322, 332, 369, 414, 483, 492, 498, 574, 581, 644, 738, 747, 828, 861, 943, 966, 996, 1148, 1162, 1449, 1476, 1494, 1722, 1743, 1886, 1909, 1932, 2324, 2583, 2829, 2898, 2988, 3403, 3444, 3486, 3772, 3818, 5166, 5229, 5658, 5727, 5796, 6601, 6806, 6972, 7636, 8487, 10209, 10332, 10458, 11316, 11454, 13202, 13363, 13612, 16974, 17181, 19803, 20418, 20916, 22908, 23821, 26404, 26726, 30627, 33948, 34362, 39606, 40089, 40836, 47642, 53452, 59409, 61254, 68724, 71463, 78269, 79212, 80178, 95284, 118818, 120267, 122508, 142926, 156538, 160356, 214389, 234807, 237636, 240534, 285852, 313076, 428778, 469614, 481068, 547883, 704421, 857556, 939228, 1095766, 1408842, 1643649, 2191532, 2817684, 3287298, 4930947, 6574596, 9861894, 19723788]

約数ペア:

[(1, 19723788), (2, 9861894), (3, 6574596), (4, 4930947), (6, 3287298), (7, 2817684), (9, 2191532), (12, 1643649), (14, 1408842), (18, 1095766), (21, 939228), (23, 857556), (28, 704421), (36, 547883), (41, 481068), (42, 469614), (46, 428778), (63, 313076), (69, 285852), (82, 240534), (83, 237636), (84, 234807), (92, 214389), (123, 160356), (126, 156538), (138, 142926), (161, 122508), (164, 120267), (166, 118818), (207, 95284), (246, 80178), (249, 79212), (252, 78269), (276, 71463), (287, 68724), (322, 61254), (332, 59409), (369, 53452), (414, 47642), (483, 40836), (492, 40089), (498, 39606), (574, 34362), (581, 33948), (644, 30627), (738, 26726), (747, 26404), (828, 23821), (861, 22908), (943, 20916), (966, 20418), (996, 19803), (1148, 17181), (1162, 16974), (1449, 13612), (1476, 13363), (1494, 13202), (1722, 11454), (1743, 11316), (1886, 10458), (1909, 10332), (1932, 10209), (2324, 8487), (2583, 7636), (2829, 6972), (2898, 6806), (2988, 6601), (3403, 5796), (3444, 5727), (3486, 5658), (3772, 5229), (3818, 5166)]