21404139

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{1483}}^1$

素因数の和:1786

約数の個数: 16

約数和(自身を含む): 30344832

約数和(自身を除く): 8940693

約数列:

[1, 3, 17, 51, 283, 849, 1483, 4449, 4811, 14433, 25211, 75633, 419689, 1259067, 7134713, 21404139]

約数ペア:

[(1, 21404139), (3, 7134713), (17, 1259067), (51, 419689), (283, 75633), (849, 25211), (1483, 14433), (4449, 4811)]