20888974664

素因数分解:

$2^3\times {\mathrm{641}}^1\times {\mathrm{4073513}}^1$

素因数の和:4074160

約数の個数: 16

約数和(自身を含む): 39227939820

約数和(自身を除く): 18338965156

約数列:

[1, 2, 4, 8, 641, 1282, 2564, 5128, 4073513, 8147026, 16294052, 32588104, 2611121833, 5222243666, 10444487332, 20888974664]

約数ペア:

[(1, 20888974664), (2, 10444487332), (4, 5222243666), (8, 2611121833), (641, 32588104), (1282, 16294052), (2564, 8147026), (5128, 4073513)]