21400786

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{191}}^1\times {\mathrm{463}}^1$

素因数の和:678

約数の個数: 24

約数和(自身を含む): 35546112

約数和(自身を除く): 14145326

約数列:

[1, 2, 11, 22, 121, 191, 242, 382, 463, 926, 2101, 4202, 5093, 10186, 23111, 46222, 56023, 88433, 112046, 176866, 972763, 1945526, 10700393, 21400786]

約数ペア:

[(1, 21400786), (2, 10700393), (11, 1945526), (22, 972763), (121, 176866), (191, 112046), (242, 88433), (382, 56023), (463, 46222), (926, 23111), (2101, 10186), (4202, 5093)]