20198128

素因数分解:

$2^4\times {\mathrm{521}}^1\times {\mathrm{2423}}^1$

素因数の和:2952

約数の個数: 20

約数和(自身を含む): 39225168

約数和(自身を除く): 19027040

約数列:

[1, 2, 4, 8, 16, 521, 1042, 2084, 2423, 4168, 4846, 8336, 9692, 19384, 38768, 1262383, 2524766, 5049532, 10099064, 20198128]

約数ペア:

[(1, 20198128), (2, 10099064), (4, 5049532), (8, 2524766), (16, 1262383), (521, 38768), (1042, 19384), (2084, 9692), (2423, 8336), (4168, 4846)]