20613985

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{13697}}^1$

素因数の和:13752

約数の個数: 16

約数和(自身を含む): 28930176

約数和(自身を除く): 8316191

約数列:

[1, 5, 7, 35, 43, 215, 301, 1505, 13697, 68485, 95879, 479395, 588971, 2944855, 4122797, 20613985]

約数ペア:

[(1, 20613985), (5, 4122797), (7, 2944855), (35, 588971), (43, 479395), (215, 95879), (301, 68485), (1505, 13697)]