18972194

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:290

約数の個数: 32

約数和(自身を含む): 31124736

約数和(自身を除く): 12152542

約数列:

[1, 2, 23, 37, 46, 71, 74, 142, 157, 314, 851, 1633, 1702, 2627, 3266, 3611, 5254, 5809, 7222, 11147, 11618, 22294, 60421, 120842, 133607, 256381, 267214, 412439, 512762, 824878, 9486097, 18972194]

約数ペア:

[(1, 18972194), (2, 9486097), (23, 824878), (37, 512762), (46, 412439), (71, 267214), (74, 256381), (142, 133607), (157, 120842), (314, 60421), (851, 22294), (1633, 11618), (1702, 11147), (2627, 7222), (3266, 5809), (3611, 5254)]