21919809

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{367}}^1\times {\mathrm{463}}^1$

素因数の和:876

約数の個数: 16

約数和(自身を含む): 30052352

約数和(自身を除く): 8132543

約数列:

[1, 3, 43, 129, 367, 463, 1101, 1389, 15781, 19909, 47343, 59727, 169921, 509763, 7306603, 21919809]

約数ペア:

[(1, 21919809), (3, 7306603), (43, 509763), (129, 169921), (367, 59727), (463, 47343), (1101, 19909), (1389, 15781)]