18493937

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{521}}^1$

素因数の和:1000

約数の個数: 16

約数和(自身を含む): 23151744

約数和(自身を除く): 4657807

約数列:

[1, 7, 11, 77, 461, 521, 3227, 3647, 5071, 5731, 35497, 40117, 240181, 1681267, 2641991, 18493937]

約数ペア:

[(1, 18493937), (7, 2641991), (11, 1681267), (77, 240181), (461, 40117), (521, 35497), (3227, 5731), (3647, 5071)]