21197167321

素因数分解:

${\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{137831}}^1$

素因数の和:137925

約数の個数: 24

約数和(自身を含む): 24637745664

約数和(自身を除く): 3440578343

約数列:

[1, 11, 31, 41, 121, 341, 451, 1271, 3751, 4961, 13981, 137831, 153791, 1516141, 4272761, 5651071, 16677551, 47000371, 62161781, 175183201, 517004081, 683779591, 1927015211, 21197167321]

約数ペア:

[(1, 21197167321), (11, 1927015211), (31, 683779591), (41, 517004081), (121, 175183201), (341, 62161781), (451, 47000371), (1271, 16677551), (3751, 5651071), (4961, 4272761), (13981, 1516141), (137831, 153791)]