821550256

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{391961}}^1$

素因数の和:392100

約数の個数: 20

約数和(自身を含む): 1603908504

約数和(自身を除く): 782358248

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 391961, 783922, 1567844, 3135688, 6271376, 51346891, 102693782, 205387564, 410775128, 821550256]

約数ペア:

[(1, 821550256), (2, 410775128), (4, 205387564), (8, 102693782), (16, 51346891), (131, 6271376), (262, 3135688), (524, 1567844), (1048, 783922), (2096, 391961)]