19724216

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{145031}}^1$

素因数の和:145054

約数の個数: 16

約数和(自身を含む): 39158640

約数和(自身を除く): 19434424

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 145031, 290062, 580124, 1160248, 2465527, 4931054, 9862108, 19724216]

約数ペア:

[(1, 19724216), (2, 9862108), (4, 4931054), (8, 2465527), (17, 1160248), (34, 580124), (68, 290062), (136, 145031)]