21713219

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4517}}^1$

素因数の和:4570

約数の個数: 16

約数和(自身を含む): 26023680

約数和(自身を除く): 4310461

約数列:

[1, 11, 19, 23, 209, 253, 437, 4517, 4807, 49687, 85823, 103891, 944053, 1142801, 1973929, 21713219]

約数ペア:

[(1, 21713219), (11, 1973929), (19, 1142801), (23, 944053), (209, 103891), (253, 85823), (437, 49687), (4517, 4807)]