18673815

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{479}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 12844905

約数列:

[1, 3, 5, 15, 23, 69, 113, 115, 339, 345, 479, 565, 1437, 1695, 2395, 2599, 7185, 7797, 11017, 12995, 33051, 38985, 54127, 55085, 162381, 165255, 270635, 811905, 1244921, 3734763, 6224605, 18673815]

約数ペア:

[(1, 18673815), (3, 6224605), (5, 3734763), (15, 1244921), (23, 811905), (69, 270635), (113, 165255), (115, 162381), (339, 55085), (345, 54127), (479, 38985), (565, 33051), (1437, 12995), (1695, 11017), (2395, 7797), (2599, 7185)]