20161191213

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{359}}^1$

素因数の和:647

約数の個数: 96

約数和(自身を含む): 32617728000

約数和(自身を除く): 12456536787

約数列:

[1, 3, 9, 19, 23, 57, 69, 109, 131, 171, 207, 327, 359, 393, 437, 981, 1077, 1179, 1311, 2071, 2489, 2507, 3013, 3231, 3933, 6213, 6821, 7467, 7521, 8257, 9039, 14279, 18639, 20463, 22401, 22563, 24771, 27117, 39131, 42837, 47029, 47633, 57247, 61389, 74313, 117393, 128511, 141087, 142899, 156883, 171741, 271301, 328417, 352179, 423261, 428697, 470649, 515223, 743489, 813903, 893551, 900013, 985251, 1081667, 1411947, 2230467, 2441709, 2680653, 2700039, 2955753, 3245001, 5126161, 6239923, 6691401, 8041959, 8100117, 9735003, 15378483, 17100247, 18719769, 20551673, 46135449, 51300741, 56159307, 61655019, 97397059, 117901703, 153902223, 184965057, 292191177, 353705109, 876573531, 1061115327, 2240132357, 6720397071, 20161191213]

約数ペア:

[(1, 20161191213), (3, 6720397071), (9, 2240132357), (19, 1061115327), (23, 876573531), (57, 353705109), (69, 292191177), (109, 184965057), (131, 153902223), (171, 117901703), (207, 97397059), (327, 61655019), (359, 56159307), (393, 51300741), (437, 46135449), (981, 20551673), (1077, 18719769), (1179, 17100247), (1311, 15378483), (2071, 9735003), (2489, 8100117), (2507, 8041959), (3013, 6691401), (3231, 6239923), (3933, 5126161), (6213, 3245001), (6821, 2955753), (7467, 2700039), (7521, 2680653), (8257, 2441709), (9039, 2230467), (14279, 1411947), (18639, 1081667), (20463, 985251), (22401, 900013), (22563, 893551), (24771, 813903), (27117, 743489), (39131, 515223), (42837, 470649), (47029, 428697), (47633, 423261), (57247, 352179), (61389, 328417), (74313, 271301), (117393, 171741), (128511, 156883), (141087, 142899)]