20187204968

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{18972937}}^1$

素因数の和:18972969

約数の個数: 32

約数和(自身を含む): 45535051200

約数和(自身を除く): 25347846232

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 18972937, 37945874, 75891748, 132810559, 151783496, 265621118, 360485803, 531242236, 720971606, 1062484472, 1441943212, 2523400621, 2883886424, 5046801242, 10093602484, 20187204968]

約数ペア:

[(1, 20187204968), (2, 10093602484), (4, 5046801242), (7, 2883886424), (8, 2523400621), (14, 1441943212), (19, 1062484472), (28, 720971606), (38, 531242236), (56, 360485803), (76, 265621118), (133, 151783496), (152, 132810559), (266, 75891748), (532, 37945874), (1064, 18972937)]