21309849

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11329}}^1$

素因数の和:11365

約数の個数: 24

約数和(自身を含む): 35349600

約数和(自身を除く): 14039751

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 11329, 33987, 101961, 124619, 215251, 373857, 645753, 1121571, 1937259, 2367761, 7103283, 21309849]

約数ペア:

[(1, 21309849), (3, 7103283), (9, 2367761), (11, 1937259), (19, 1121571), (33, 645753), (57, 373857), (99, 215251), (171, 124619), (209, 101961), (627, 33987), (1881, 11329)]