21148273

素因数分解:

${\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:408

約数の個数: 16

約数和(自身を含む): 23034240

約数和(自身を除く): 1885967

約数列:

[1, 19, 61, 71, 257, 1159, 1349, 4331, 4883, 15677, 18247, 82289, 297863, 346693, 1113067, 21148273]

約数ペア:

[(1, 21148273), (19, 1113067), (61, 346693), (71, 297863), (257, 82289), (1159, 18247), (1349, 15677), (4331, 4883)]