21016808

素因数分解:

$2^3\times {\mathrm{829}}^1\times {\mathrm{3169}}^1$

素因数の和:4004

約数の個数: 16

約数和(自身を含む): 39466500

約数和(自身を除く): 18449692

約数列:

[1, 2, 4, 8, 829, 1658, 3169, 3316, 6338, 6632, 12676, 25352, 2627101, 5254202, 10508404, 21016808]

約数ペア:

[(1, 21016808), (2, 10508404), (4, 5254202), (8, 2627101), (829, 25352), (1658, 12676), (3169, 6632), (3316, 6338)]