21000932218

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1637}}^1\times {\mathrm{2837}}^1$

素因数の和:4519

約数の個数: 64

約数和(自身を含む): 40164284160

約数和(自身を除く): 19163351942

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 266, 323, 646, 1637, 2261, 2837, 3274, 4522, 5674, 11459, 19859, 22918, 27829, 31103, 39718, 48229, 53903, 55658, 62206, 96458, 107806, 194803, 217721, 337603, 377321, 389606, 435442, 528751, 675206, 754642, 916351, 1057502, 1832702, 3701257, 4644169, 6414457, 7402514, 9288338, 12828914, 32509183, 65018366, 78950873, 88239211, 157901746, 176478422, 552656111, 617674477, 1105312222, 1235348954, 1500066587, 3000133174, 10500466109, 21000932218]

約数ペア:

[(1, 21000932218), (2, 10500466109), (7, 3000133174), (14, 1500066587), (17, 1235348954), (19, 1105312222), (34, 617674477), (38, 552656111), (119, 176478422), (133, 157901746), (238, 88239211), (266, 78950873), (323, 65018366), (646, 32509183), (1637, 12828914), (2261, 9288338), (2837, 7402514), (3274, 6414457), (4522, 4644169), (5674, 3701257), (11459, 1832702), (19859, 1057502), (22918, 916351), (27829, 754642), (31103, 675206), (39718, 528751), (48229, 435442), (53903, 389606), (55658, 377321), (62206, 337603), (96458, 217721), (107806, 194803)]