18924171

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1103}}^1$

素因数の和:1175

約数の個数: 32

約数和(自身を含む): 31088640

約数和(自身を除く): 12164469

約数列:

[1, 3, 7, 19, 21, 43, 57, 129, 133, 301, 399, 817, 903, 1103, 2451, 3309, 5719, 7721, 17157, 20957, 23163, 47429, 62871, 142287, 146699, 332003, 440097, 901151, 996009, 2703453, 6308057, 18924171]

約数ペア:

[(1, 18924171), (3, 6308057), (7, 2703453), (19, 996009), (21, 901151), (43, 440097), (57, 332003), (129, 146699), (133, 142287), (301, 62871), (399, 47429), (817, 23163), (903, 20957), (1103, 17157), (2451, 7721), (3309, 5719)]