20504154

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:315

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 27396006

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 38, 57, 66, 83, 114, 166, 197, 209, 249, 394, 418, 498, 591, 627, 913, 1182, 1254, 1577, 1826, 2167, 2739, 3154, 3743, 4334, 4731, 5478, 6501, 7486, 9462, 11229, 13002, 16351, 17347, 22458, 32702, 34694, 41173, 49053, 52041, 82346, 98106, 104082, 123519, 179861, 247038, 310669, 359722, 539583, 621338, 932007, 1079166, 1864014, 3417359, 6834718, 10252077, 20504154]

約数ペア:

[(1, 20504154), (2, 10252077), (3, 6834718), (6, 3417359), (11, 1864014), (19, 1079166), (22, 932007), (33, 621338), (38, 539583), (57, 359722), (66, 310669), (83, 247038), (114, 179861), (166, 123519), (197, 104082), (209, 98106), (249, 82346), (394, 52041), (418, 49053), (498, 41173), (591, 34694), (627, 32702), (913, 22458), (1182, 17347), (1254, 16351), (1577, 13002), (1826, 11229), (2167, 9462), (2739, 7486), (3154, 6501), (3743, 5478), (4334, 4731)]