18966266

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{181}}^1\times {\mathrm{433}}^1$

素因数の和:638

約数の個数: 24

約数和(自身を含む): 31516212

約数和(自身を除く): 12549946

約数列:

[1, 2, 11, 22, 121, 181, 242, 362, 433, 866, 1991, 3982, 4763, 9526, 21901, 43802, 52393, 78373, 104786, 156746, 862103, 1724206, 9483133, 18966266]

約数ペア:

[(1, 18966266), (2, 9483133), (11, 1724206), (22, 862103), (121, 156746), (181, 104786), (242, 78373), (362, 52393), (433, 43802), (866, 21901), (1991, 9526), (3982, 4763)]