18621820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{133013}}^1$

素因数の和:133029

約数の個数: 24

約数和(自身を含む): 44692704

約数和(自身を除く): 26070884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 133013, 266026, 532052, 665065, 931091, 1330130, 1862182, 2660260, 3724364, 4655455, 9310910, 18621820]

約数ペア:

[(1, 18621820), (2, 9310910), (4, 4655455), (5, 3724364), (7, 2660260), (10, 1862182), (14, 1330130), (20, 931091), (28, 665065), (35, 532052), (70, 266026), (140, 133013)]