18975117

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{24421}}^1$

素因数の和:24468

約数の個数: 16

約数和(自身を含む): 29697152

約数和(自身を除く): 10722035

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 24421, 73263, 170947, 512841, 903577, 2710731, 6325039, 18975117]

約数ペア:

[(1, 18975117), (3, 6325039), (7, 2710731), (21, 903577), (37, 512841), (111, 170947), (259, 73263), (777, 24421)]