19873264

素因数分解:

$2^4\times {\mathrm{1009}}^1\times {\mathrm{1231}}^1$

素因数の和:2248

約数の個数: 20

約数和(自身を含む): 38573920

約数和(自身を除く): 18700656

約数列:

[1, 2, 4, 8, 16, 1009, 1231, 2018, 2462, 4036, 4924, 8072, 9848, 16144, 19696, 1242079, 2484158, 4968316, 9936632, 19873264]

約数ペア:

[(1, 19873264), (2, 9936632), (4, 4968316), (8, 2484158), (16, 1242079), (1009, 19696), (1231, 16144), (2018, 9848), (2462, 8072), (4036, 4924)]