20916272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{100559}}^1$

素因数の和:100580

約数の個数: 20

約数和(自身を含む): 43643040

約数和(自身を除く): 22726768

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 100559, 201118, 402236, 804472, 1307267, 1608944, 2614534, 5229068, 10458136, 20916272]

約数ペア:

[(1, 20916272), (2, 10458136), (4, 5229068), (8, 2614534), (13, 1608944), (16, 1307267), (26, 804472), (52, 402236), (104, 201118), (208, 100559)]