20218871816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{42181}}^1$

素因数の和:42630

約数の個数: 64

約数和(自身を含む): 44645428800

約数和(自身を除く): 24426556984

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 419, 572, 838, 1144, 1676, 3352, 4609, 5447, 9218, 10894, 18436, 21788, 36872, 42181, 43576, 59917, 84362, 119834, 168724, 239668, 337448, 463991, 479336, 548353, 927982, 1096706, 1855964, 2193412, 3711928, 4386824, 6031883, 12063766, 17673839, 24127532, 35347678, 48255064, 70695356, 141390712, 194412229, 229759907, 388824458, 459519814, 777648916, 919039628, 1555297832, 1838079256, 2527358977, 5054717954, 10109435908, 20218871816]

約数ペア:

[(1, 20218871816), (2, 10109435908), (4, 5054717954), (8, 2527358977), (11, 1838079256), (13, 1555297832), (22, 919039628), (26, 777648916), (44, 459519814), (52, 388824458), (88, 229759907), (104, 194412229), (143, 141390712), (286, 70695356), (419, 48255064), (572, 35347678), (838, 24127532), (1144, 17673839), (1676, 12063766), (3352, 6031883), (4609, 4386824), (5447, 3711928), (9218, 2193412), (10894, 1855964), (18436, 1096706), (21788, 927982), (36872, 548353), (42181, 479336), (43576, 463991), (59917, 337448), (84362, 239668), (119834, 168724)]