20304179

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1$

素因数の和:339

約数の個数: 24

約数和(自身を含む): 25212240

約数和(自身を除く): 4908061

約数列:

[1, 7, 19, 49, 113, 133, 193, 791, 931, 1351, 2147, 3667, 5537, 9457, 15029, 21809, 25669, 105203, 152663, 179683, 414371, 1068641, 2900597, 20304179]

約数ペア:

[(1, 20304179), (7, 2900597), (19, 1068641), (49, 414371), (113, 179683), (133, 152663), (193, 105203), (791, 25669), (931, 21809), (1351, 15029), (2147, 9457), (3667, 5537)]