18680564

素因数分解:

$2^2\times 7^2\times {\mathrm{191}}^1\times {\mathrm{499}}^1$

素因数の和:708

約数の個数: 36

約数和(自身を含む): 38304000

約数和(自身を除く): 19623436

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 191, 196, 382, 499, 764, 998, 1337, 1996, 2674, 3493, 5348, 6986, 9359, 13972, 18718, 24451, 37436, 48902, 95309, 97804, 190618, 381236, 667163, 1334326, 2668652, 4670141, 9340282, 18680564]

約数ペア:

[(1, 18680564), (2, 9340282), (4, 4670141), (7, 2668652), (14, 1334326), (28, 667163), (49, 381236), (98, 190618), (191, 97804), (196, 95309), (382, 48902), (499, 37436), (764, 24451), (998, 18718), (1337, 13972), (1996, 9359), (2674, 6986), (3493, 5348)]