18947734

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:304

約数の個数: 32

約数和(自身を含む): 31701600

約数和(自身を除く): 12753866

約数列:

[1, 2, 13, 26, 67, 73, 134, 146, 149, 298, 871, 949, 1742, 1898, 1937, 3874, 4891, 9782, 9983, 10877, 19966, 21754, 63583, 127166, 129779, 141401, 259558, 282802, 728759, 1457518, 9473867, 18947734]

約数ペア:

[(1, 18947734), (2, 9473867), (13, 1457518), (26, 728759), (67, 282802), (73, 259558), (134, 141401), (146, 129779), (149, 127166), (298, 63583), (871, 21754), (949, 19966), (1742, 10877), (1898, 9983), (1937, 9782), (3874, 4891)]