18679199

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{661}}^1$

素因数の和:1046

約数の個数: 16

約数和(自身を含む): 23387136

約数和(自身を除く): 4707937

約数列:

[1, 7, 11, 77, 367, 661, 2569, 4037, 4627, 7271, 28259, 50897, 242587, 1698109, 2668457, 18679199]

約数ペア:

[(1, 18679199), (7, 2668457), (11, 1698109), (77, 242587), (367, 50897), (661, 28259), (2569, 7271), (4037, 4627)]