18690537

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{1867}}^1$

素因数の和:1988

約数の個数: 16

約数和(自身を含む): 25823232

約数和(自身を除く): 7132695

約数列:

[1, 3, 47, 71, 141, 213, 1867, 3337, 5601, 10011, 87749, 132557, 263247, 397671, 6230179, 18690537]

約数ペア:

[(1, 18690537), (3, 6230179), (47, 397671), (71, 263247), (141, 132557), (213, 87749), (1867, 10011), (3337, 5601)]