21741549

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{991}}^1$

素因数の和:1168

約数の個数: 16

約数和(自身を含む): 29712384

約数和(自身を除く): 7970835

約数列:

[1, 3, 71, 103, 213, 309, 991, 2973, 7313, 21939, 70361, 102073, 211083, 306219, 7247183, 21741549]

約数ペア:

[(1, 21741549), (3, 7247183), (71, 306219), (103, 211083), (213, 102073), (309, 70361), (991, 21939), (2973, 7313)]