21386994

素因数分解:

$2^1\times 3^1\times {\mathrm{41}}^1\times {\mathrm{86939}}^1$

素因数の和:86985

約数の個数: 16

約数和(自身を含む): 43817760

約数和(自身を除く): 22430766

約数列:

[1, 2, 3, 6, 41, 82, 123, 246, 86939, 173878, 260817, 521634, 3564499, 7128998, 10693497, 21386994]

約数ペア:

[(1, 21386994), (2, 10693497), (3, 7128998), (6, 3564499), (41, 521634), (82, 260817), (123, 173878), (246, 86939)]