20668712757

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{20707}}^1$

素因数の和:20906

約数の個数: 64

約数和(自身を含む): 35783424000

約数和(自身を除く): 15114711243

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 149, 203, 231, 319, 447, 609, 957, 1043, 1639, 2233, 3129, 4321, 4917, 6699, 11473, 12963, 20707, 30247, 34419, 47531, 62121, 90741, 142593, 144949, 227777, 332717, 434847, 600503, 683331, 998151, 1594439, 1801509, 3085343, 4203521, 4783317, 6605533, 9256029, 12610563, 19816599, 21597401, 33938773, 46238731, 64792203, 89474947, 101816319, 138716193, 237571411, 268424841, 626324629, 712714233, 984224417, 1878973887, 2952673251, 6889570919, 20668712757]

約数ペア:

[(1, 20668712757), (3, 6889570919), (7, 2952673251), (11, 1878973887), (21, 984224417), (29, 712714233), (33, 626324629), (77, 268424841), (87, 237571411), (149, 138716193), (203, 101816319), (231, 89474947), (319, 64792203), (447, 46238731), (609, 33938773), (957, 21597401), (1043, 19816599), (1639, 12610563), (2233, 9256029), (3129, 6605533), (4321, 4783317), (4917, 4203521), (6699, 3085343), (11473, 1801509), (12963, 1594439), (20707, 998151), (30247, 683331), (34419, 600503), (47531, 434847), (62121, 332717), (90741, 227777), (142593, 144949)]