21129383

素因数分解:

${\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:227

約数の個数: 24

約数和(自身を含む): 24718848

約数和(自身を除く): 3589465

約数列:

[1, 11, 31, 43, 121, 131, 341, 473, 1333, 1441, 3751, 4061, 5203, 5633, 14663, 15851, 44671, 61963, 161293, 174623, 491381, 681593, 1920853, 21129383]

約数ペア:

[(1, 21129383), (11, 1920853), (31, 681593), (43, 491381), (121, 174623), (131, 161293), (341, 61963), (473, 44671), (1333, 15851), (1441, 14663), (3751, 5633), (4061, 5203)]