21339773

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1553}}^1$

素因数の和:1724

約数の個数: 16

約数和(自身を含む): 26455296

約数和(自身を除く): 5115523

約数列:

[1, 7, 13, 91, 151, 1057, 1553, 1963, 10871, 13741, 20189, 141323, 234503, 1641521, 3048539, 21339773]

約数ペア:

[(1, 21339773), (7, 3048539), (13, 1641521), (91, 234503), (151, 141323), (1057, 20189), (1553, 13741), (1963, 10871)]