21789768

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{907}}^1$

素因数の和:947

約数の個数: 128

約数和(自身を含む): 73221120

約数和(自身を除く): 51431352

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 13, 14, 21, 22, 24, 26, 28, 33, 39, 42, 44, 52, 56, 66, 77, 78, 84, 88, 91, 104, 132, 143, 154, 156, 168, 182, 231, 264, 273, 286, 308, 312, 364, 429, 462, 546, 572, 616, 728, 858, 907, 924, 1001, 1092, 1144, 1716, 1814, 1848, 2002, 2184, 2721, 3003, 3432, 3628, 4004, 5442, 6006, 6349, 7256, 8008, 9977, 10884, 11791, 12012, 12698, 19047, 19954, 21768, 23582, 24024, 25396, 29931, 35373, 38094, 39908, 47164, 50792, 59862, 69839, 70746, 76188, 79816, 82537, 94328, 119724, 129701, 139678, 141492, 152376, 165074, 209517, 239448, 247611, 259402, 279356, 282984, 330148, 389103, 419034, 495222, 518804, 558712, 660296, 778206, 838068, 907907, 990444, 1037608, 1556412, 1676136, 1815814, 1980888, 2723721, 3112824, 3631628, 5447442, 7263256, 10894884, 21789768]

約数ペア:

[(1, 21789768), (2, 10894884), (3, 7263256), (4, 5447442), (6, 3631628), (7, 3112824), (8, 2723721), (11, 1980888), (12, 1815814), (13, 1676136), (14, 1556412), (21, 1037608), (22, 990444), (24, 907907), (26, 838068), (28, 778206), (33, 660296), (39, 558712), (42, 518804), (44, 495222), (52, 419034), (56, 389103), (66, 330148), (77, 282984), (78, 279356), (84, 259402), (88, 247611), (91, 239448), (104, 209517), (132, 165074), (143, 152376), (154, 141492), (156, 139678), (168, 129701), (182, 119724), (231, 94328), (264, 82537), (273, 79816), (286, 76188), (308, 70746), (312, 69839), (364, 59862), (429, 50792), (462, 47164), (546, 39908), (572, 38094), (616, 35373), (728, 29931), (858, 25396), (907, 24024), (924, 23582), (1001, 21768), (1092, 19954), (1144, 19047), (1716, 12698), (1814, 12012), (1848, 11791), (2002, 10884), (2184, 9977), (2721, 8008), (3003, 7256), (3432, 6349), (3628, 6006), (4004, 5442)]