21305136004

素因数分解:

$2^2\times {\mathrm{67559}}^1\times {\mathrm{78839}}^1$

素因数の和:146402

約数の個数: 12

約数和(自身を含む): 37285012800

約数和(自身を除く): 15979876796

約数列:

[1, 2, 4, 67559, 78839, 135118, 157678, 270236, 315356, 5326284001, 10652568002, 21305136004]

約数ペア:

[(1, 21305136004), (2, 10652568002), (4, 5326284001), (67559, 315356), (78839, 270236), (135118, 157678)]