16991892

素因数分解:

$2^2\times 3^2\times {\mathrm{471997}}^1$

素因数の和:472007

約数の個数: 18

約数和(自身を含む): 42951818

約数和(自身を除く): 25959926

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 471997, 943994, 1415991, 1887988, 2831982, 4247973, 5663964, 8495946, 16991892]

約数ペア:

[(1, 16991892), (2, 8495946), (3, 5663964), (4, 4247973), (6, 2831982), (9, 1887988), (12, 1415991), (18, 943994), (36, 471997)]