638862018

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{1589209}}^1$

素因数の和:1589281

約数の個数: 16

約数和(自身を含む): 1296795360

約数和(自身を除く): 657933342

約数列:

[1, 2, 3, 6, 67, 134, 201, 402, 1589209, 3178418, 4767627, 9535254, 106477003, 212954006, 319431009, 638862018]

約数ペア:

[(1, 638862018), (2, 319431009), (3, 212954006), (6, 106477003), (67, 9535254), (134, 4767627), (201, 3178418), (402, 1589209)]