168781978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{66293}}^1$

素因数の和:66381

約数の個数: 16

約数和(自身を含む): 270479520

約数和(自身を除く): 101697542

約数列:

[1, 2, 19, 38, 67, 134, 1273, 2546, 66293, 132586, 1259567, 2519134, 4441631, 8883262, 84390989, 168781978]

約数ペア:

[(1, 168781978), (2, 84390989), (19, 8883262), (38, 4441631), (67, 2519134), (134, 1259567), (1273, 132586), (2546, 66293)]