21077320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47903}}^1$

素因数の和:47925

約数の個数: 32

約数和(自身を含む): 51736320

約数和(自身を除く): 30659000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47903, 95806, 191612, 239515, 383224, 479030, 526933, 958060, 1053866, 1916120, 2107732, 2634665, 4215464, 5269330, 10538660, 21077320]

約数ペア:

[(1, 21077320), (2, 10538660), (4, 5269330), (5, 4215464), (8, 2634665), (10, 2107732), (11, 1916120), (20, 1053866), (22, 958060), (40, 526933), (44, 479030), (55, 383224), (88, 239515), (110, 191612), (220, 95806), (440, 47903)]