20585715

素因数分解:

$3^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2141}}^1$

素因数の和:2790

約数の個数: 16

約数和(自身を含む): 33003936

約数和(自身を除く): 12418221

約数列:

[1, 3, 5, 15, 641, 1923, 2141, 3205, 6423, 9615, 10705, 32115, 1372381, 4117143, 6861905, 20585715]

約数ペア:

[(1, 20585715), (3, 6861905), (5, 4117143), (15, 1372381), (641, 32115), (1923, 10705), (2141, 9615), (3205, 6423)]