19723005

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4021}}^1$

素因数の和:4141

約数の個数: 24

約数和(自身を含む): 34508760

約数和(自身を除く): 14785755

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4021, 4905, 12063, 20105, 36189, 60315, 180945, 438289, 1314867, 2191445, 3944601, 6574335, 19723005]

約数ペア:

[(1, 19723005), (3, 6574335), (5, 3944601), (9, 2191445), (15, 1314867), (45, 438289), (109, 180945), (327, 60315), (545, 36189), (981, 20105), (1635, 12063), (4021, 4905)]