650997

素因数分解:

$3^6\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:84

約数の個数: 28

約数和(自身を含む): 1049280

約数和(自身を除く): 398283

約数列:

[1, 3, 9, 19, 27, 47, 57, 81, 141, 171, 243, 423, 513, 729, 893, 1269, 1539, 2679, 3807, 4617, 8037, 11421, 13851, 24111, 34263, 72333, 216999, 650997]

約数ペア:

[(1, 650997), (3, 216999), (9, 72333), (19, 34263), (27, 24111), (47, 13851), (57, 11421), (81, 8037), (141, 4617), (171, 3807), (243, 2679), (423, 1539), (513, 1269), (729, 893)]