18871937

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{467}}^1$

素因数の和:748

約数の個数: 16

約数和(自身を含む): 22643712

約数和(自身を除く): 3771775

約数列:

[1, 7, 23, 161, 251, 467, 1757, 3269, 5773, 10741, 40411, 75187, 117217, 820519, 2695991, 18871937]

約数ペア:

[(1, 18871937), (7, 2695991), (23, 820519), (161, 117217), (251, 75187), (467, 40411), (1757, 10741), (3269, 5773)]