21000279796

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{743}}^1\times {\mathrm{371897}}^1$

素因数の和:372663

約数の個数: 24

約数和(自身を含む): 38736895680

約数和(自身を除く): 17736615884

約数列:

[1, 2, 4, 19, 38, 76, 743, 1486, 2972, 14117, 28234, 56468, 371897, 743794, 1487588, 7066043, 14132086, 28264172, 276319471, 552638942, 1105277884, 5250069949, 10500139898, 21000279796]

約数ペア:

[(1, 21000279796), (2, 10500139898), (4, 5250069949), (19, 1105277884), (38, 552638942), (76, 276319471), (743, 28264172), (1486, 14132086), (2972, 7066043), (14117, 1487588), (28234, 743794), (56468, 371897)]