20808944

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{100043}}^1$

素因数の和:100064

約数の個数: 20

約数和(自身を含む): 43419096

約数和(自身を除く): 22610152

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 100043, 200086, 400172, 800344, 1300559, 1600688, 2601118, 5202236, 10404472, 20808944]

約数ペア:

[(1, 20808944), (2, 10404472), (4, 5202236), (8, 2601118), (13, 1600688), (16, 1300559), (26, 800344), (52, 400172), (104, 200086), (208, 100043)]