21022090

素因数分解:

$2^1\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{2039}}^1$

素因数の和:3077

約数の個数: 16

約数和(自身を含む): 37895040

約数和(自身を除く): 16872950

約数列:

[1, 2, 5, 10, 1031, 2039, 2062, 4078, 5155, 10195, 10310, 20390, 2102209, 4204418, 10511045, 21022090]

約数ペア:

[(1, 21022090), (2, 10511045), (5, 4204418), (10, 2102209), (1031, 20390), (2039, 10310), (2062, 10195), (4078, 5155)]