21066155

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{1061}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 29132784

約数和(自身を除く): 8066629

約数列:

[1, 5, 11, 19, 55, 95, 209, 361, 1045, 1061, 1805, 3971, 5305, 11671, 19855, 20159, 58355, 100795, 221749, 383021, 1108745, 1915105, 4213231, 21066155]

約数ペア:

[(1, 21066155), (5, 4213231), (11, 1915105), (19, 1108745), (55, 383021), (95, 221749), (209, 100795), (361, 58355), (1045, 20159), (1061, 19855), (1805, 11671), (3971, 5305)]