16991784

素因数分解:

$2^3\times 3^2\times {\mathrm{235997}}^1$

素因数の和:236009

約数の個数: 24

約数和(自身を含む): 46019610

約数和(自身を除く): 29027826

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 235997, 471994, 707991, 943988, 1415982, 1887976, 2123973, 2831964, 4247946, 5663928, 8495892, 16991784]

約数ペア:

[(1, 16991784), (2, 8495892), (3, 5663928), (4, 4247946), (6, 2831964), (8, 2123973), (9, 1887976), (12, 1415982), (18, 943988), (24, 707991), (36, 471994), (72, 235997)]