19407518

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{8387}}^1$

素因数の和:8491

約数の個数: 16

約数和(自身を含む): 31706640

約数和(自身を除く): 12299122

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 8387, 16774, 109031, 218062, 746443, 1492886, 9703759, 19407518]

約数ペア:

[(1, 19407518), (2, 9703759), (13, 1492886), (26, 746443), (89, 218062), (178, 109031), (1157, 16774), (2314, 8387)]