19998064

素因数分解:

$2^4\times {\mathrm{521}}^1\times {\mathrm{2399}}^1$

素因数の和:2928

約数の個数: 20

約数和(自身を含む): 38836800

約数和(自身を除く): 18838736

約数列:

[1, 2, 4, 8, 16, 521, 1042, 2084, 2399, 4168, 4798, 8336, 9596, 19192, 38384, 1249879, 2499758, 4999516, 9999032, 19998064]

約数ペア:

[(1, 19998064), (2, 9999032), (4, 4999516), (8, 2499758), (16, 1249879), (521, 38384), (1042, 19192), (2084, 9596), (2399, 8336), (4168, 4798)]