21360304

素因数分解:

$2^4\times 7^1\times {\mathrm{190717}}^1$

素因数の和:190732

約数の個数: 20

約数和(自身を含む): 47298064

約数和(自身を除く): 25937760

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190717, 381434, 762868, 1335019, 1525736, 2670038, 3051472, 5340076, 10680152, 21360304]

約数ペア:

[(1, 21360304), (2, 10680152), (4, 5340076), (7, 3051472), (8, 2670038), (14, 1525736), (16, 1335019), (28, 762868), (56, 381434), (112, 190717)]