21404911

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1531}}^1$

素因数の和:1614

約数の個数: 16

約数和(自身を含む): 24708096

約数和(自身を除く): 3303185

約数列:

[1, 11, 31, 41, 341, 451, 1271, 1531, 13981, 16841, 47461, 62771, 522071, 690481, 1945901, 21404911]

約数ペア:

[(1, 21404911), (11, 1945901), (31, 690481), (41, 522071), (341, 62771), (451, 47461), (1271, 16841), (1531, 13981)]