20430291

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{13327}}^1$

素因数の和:13410

約数の個数: 16

約数和(自身を含む): 31560704

約数和(自身を除く): 11130413

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 13327, 39981, 93289, 279867, 972871, 2918613, 6810097, 20430291]

約数ペア:

[(1, 20430291), (3, 6810097), (7, 2918613), (21, 972871), (73, 279867), (219, 93289), (511, 39981), (1533, 13327)]