20211363

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{5309}}^1$

素因数の和:5368

約数の個数: 20

約数和(自身を含む): 30840480

約数和(自身を除く): 10629117

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 5309, 15927, 47781, 143343, 249523, 430029, 748569, 2245707, 6737121, 20211363]

約数ペア:

[(1, 20211363), (3, 6737121), (9, 2245707), (27, 748569), (47, 430029), (81, 249523), (141, 143343), (423, 47781), (1269, 15927), (3807, 5309)]