21076451858

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{127549}}^1$

素因数の和:127635

約数の個数: 64

約数和(自身を含む): 41877216000

約数和(自身を除く): 20800764142

約数列:

[1, 2, 7, 11, 14, 22, 29, 37, 58, 74, 77, 154, 203, 259, 319, 406, 407, 518, 638, 814, 1073, 2146, 2233, 2849, 4466, 5698, 7511, 11803, 15022, 23606, 82621, 127549, 165242, 255098, 892843, 1403039, 1785686, 2806078, 3698921, 4719313, 7397842, 9438626, 9821273, 19642546, 25892447, 33035191, 40688131, 51784894, 51912443, 66070382, 81376262, 103824886, 136860077, 273720154, 284816917, 363387101, 569633834, 726774202, 958020539, 1505460847, 1916041078, 3010921694, 10538225929, 21076451858]

約数ペア:

[(1, 21076451858), (2, 10538225929), (7, 3010921694), (11, 1916041078), (14, 1505460847), (22, 958020539), (29, 726774202), (37, 569633834), (58, 363387101), (74, 284816917), (77, 273720154), (154, 136860077), (203, 103824886), (259, 81376262), (319, 66070382), (406, 51912443), (407, 51784894), (518, 40688131), (638, 33035191), (814, 25892447), (1073, 19642546), (2146, 9821273), (2233, 9438626), (2849, 7397842), (4466, 4719313), (5698, 3698921), (7511, 2806078), (11803, 1785686), (15022, 1403039), (23606, 892843), (82621, 255098), (127549, 165242)]