19603724

素因数分解:

$2^2\times 7^2\times {\mathrm{100019}}^1$

素因数の和:100037

約数の個数: 18

約数和(自身を含む): 39907980

約数和(自身を除く): 20304256

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 100019, 200038, 400076, 700133, 1400266, 2800532, 4900931, 9801862, 19603724]

約数ペア:

[(1, 19603724), (2, 9801862), (4, 4900931), (7, 2800532), (14, 1400266), (28, 700133), (49, 400076), (98, 200038), (196, 100019)]