19620188

素因数分解:

$2^2\times 7^2\times {\mathrm{100103}}^1$

素因数の和:100121

約数の個数: 18

約数和(自身を含む): 39941496

約数和(自身を除く): 20321308

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 100103, 200206, 400412, 700721, 1401442, 2802884, 4905047, 9810094, 19620188]

約数ペア:

[(1, 19620188), (2, 9810094), (4, 4905047), (7, 2802884), (14, 1401442), (28, 700721), (49, 400412), (98, 200206), (196, 100103)]