21892640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1777}}^1$

素因数の和:1810

約数の個数: 96

約数和(自身を含む): 64520064

約数和(自身を除く): 42627424

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 352, 385, 440, 560, 616, 770, 880, 1120, 1232, 1540, 1760, 1777, 2464, 3080, 3554, 6160, 7108, 8885, 12320, 12439, 14216, 17770, 19547, 24878, 28432, 35540, 39094, 49756, 56864, 62195, 71080, 78188, 97735, 99512, 124390, 136829, 142160, 156376, 195470, 199024, 248780, 273658, 284320, 312752, 390940, 398048, 497560, 547316, 625504, 684145, 781880, 995120, 1094632, 1368290, 1563760, 1990240, 2189264, 2736580, 3127520, 4378528, 5473160, 10946320, 21892640]

約数ペア:

[(1, 21892640), (2, 10946320), (4, 5473160), (5, 4378528), (7, 3127520), (8, 2736580), (10, 2189264), (11, 1990240), (14, 1563760), (16, 1368290), (20, 1094632), (22, 995120), (28, 781880), (32, 684145), (35, 625504), (40, 547316), (44, 497560), (55, 398048), (56, 390940), (70, 312752), (77, 284320), (80, 273658), (88, 248780), (110, 199024), (112, 195470), (140, 156376), (154, 142160), (160, 136829), (176, 124390), (220, 99512), (224, 97735), (280, 78188), (308, 71080), (352, 62195), (385, 56864), (440, 49756), (560, 39094), (616, 35540), (770, 28432), (880, 24878), (1120, 19547), (1232, 17770), (1540, 14216), (1760, 12439), (1777, 12320), (2464, 8885), (3080, 7108), (3554, 6160)]