18705130

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21017}}^1$

素因数の和:21113

約数の個数: 16

約数和(自身を含む): 34049160

約数和(自身を除く): 15344030

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 21017, 42034, 105085, 210170, 1870513, 3741026, 9352565, 18705130]

約数ペア:

[(1, 18705130), (2, 9352565), (5, 3741026), (10, 1870513), (89, 210170), (178, 105085), (445, 42034), (890, 21017)]