21208258176

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{7889977}}^1$

素因数の和:7890001

約数の個数: 64

約数和(自身を含む): 64382220480

約数和(自身を除く): 43173962304

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 336, 384, 448, 672, 896, 1344, 2688, 7889977, 15779954, 23669931, 31559908, 47339862, 55229839, 63119816, 94679724, 110459678, 126239632, 165689517, 189359448, 220919356, 252479264, 331379034, 378718896, 441838712, 504958528, 662758068, 757437792, 883677424, 1009917056, 1325516136, 1514875584, 1767354848, 2651032272, 3029751168, 3534709696, 5302064544, 7069419392, 10604129088, 21208258176]

約数ペア:

[(1, 21208258176), (2, 10604129088), (3, 7069419392), (4, 5302064544), (6, 3534709696), (7, 3029751168), (8, 2651032272), (12, 1767354848), (14, 1514875584), (16, 1325516136), (21, 1009917056), (24, 883677424), (28, 757437792), (32, 662758068), (42, 504958528), (48, 441838712), (56, 378718896), (64, 331379034), (84, 252479264), (96, 220919356), (112, 189359448), (128, 165689517), (168, 126239632), (192, 110459678), (224, 94679724), (336, 63119816), (384, 55229839), (448, 47339862), (672, 31559908), (896, 23669931), (1344, 15779954), (2688, 7889977)]