21560872

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{86939}}^1$

素因数の和:86976

約数の個数: 16

約数和(自身を含む): 41731200

約数和(自身を除く): 20170328

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 86939, 173878, 347756, 695512, 2695109, 5390218, 10780436, 21560872]

約数ペア:

[(1, 21560872), (2, 10780436), (4, 5390218), (8, 2695109), (31, 695512), (62, 347756), (124, 173878), (248, 86939)]