21056984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{202471}}^1$

素因数の和:202490

約数の個数: 16

約数和(自身を含む): 42519120

約数和(自身を除く): 21462136

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 202471, 404942, 809884, 1619768, 2632123, 5264246, 10528492, 21056984]

約数ペア:

[(1, 21056984), (2, 10528492), (4, 5264246), (8, 2632123), (13, 1619768), (26, 809884), (52, 404942), (104, 202471)]