19245260

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13553}}^1$

素因数の和:13633

約数の個数: 24

約数和(自身を含む): 40987296

約数和(自身を除く): 21742036

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 13553, 27106, 54212, 67765, 135530, 271060, 962263, 1924526, 3849052, 4811315, 9622630, 19245260]

約数ペア:

[(1, 19245260), (2, 9622630), (4, 4811315), (5, 3849052), (10, 1924526), (20, 962263), (71, 271060), (142, 135530), (284, 67765), (355, 54212), (710, 27106), (1420, 13553)]