18721105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1933}}^1$

素因数の和:2100

約数の個数: 16

約数和(自身を含む): 24368400

約数和(自身を除く): 5647295

約数列:

[1, 5, 13, 65, 149, 745, 1933, 1937, 9665, 9685, 25129, 125645, 288017, 1440085, 3744221, 18721105]

約数ペア:

[(1, 18721105), (5, 3744221), (13, 1440085), (65, 288017), (149, 125645), (745, 25129), (1933, 9685), (1937, 9665)]