21125291

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1511}}^1$

素因数の和:1594

約数の個数: 16

約数和(自身を含む): 24385536

約数和(自身を除く): 3260245

約数列:

[1, 11, 31, 41, 341, 451, 1271, 1511, 13981, 16621, 46841, 61951, 515251, 681461, 1920481, 21125291]

約数ペア:

[(1, 21125291), (11, 1920481), (31, 681461), (41, 515251), (341, 61951), (451, 46841), (1271, 16621), (1511, 13981)]