21028616

素因数分解:

$2^3\times 7^1\times {\mathrm{375511}}^1$

素因数の和:375524

約数の個数: 16

約数和(自身を含む): 45061440

約数和(自身を除く): 24032824

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 375511, 751022, 1502044, 2628577, 3004088, 5257154, 10514308, 21028616]

約数ペア:

[(1, 21028616), (2, 10514308), (4, 5257154), (7, 3004088), (8, 2628577), (14, 1502044), (28, 751022), (56, 375511)]