18690861

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{28711}}^1$

素因数の和:28752

約数の個数: 16

約数和(自身を含む): 29401088

約数和(自身を除く): 10710227

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 28711, 86133, 200977, 602931, 890041, 2670123, 6230287, 18690861]

約数ペア:

[(1, 18690861), (3, 6230287), (7, 2670123), (21, 890041), (31, 602931), (93, 200977), (217, 86133), (651, 28711)]