19816269

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{1223}}^1$

素因数の和:1728

約数の個数: 16

約数和(自身を含む): 28905984

約数和(自身を除く): 9089715

約数列:

[1, 3, 11, 33, 491, 1223, 1473, 3669, 5401, 13453, 16203, 40359, 600493, 1801479, 6605423, 19816269]

約数ペア:

[(1, 19816269), (3, 6605423), (11, 1801479), (33, 600493), (491, 40359), (1223, 16203), (1473, 13453), (3669, 5401)]