7520121

素因数分解:

$3^5\times 7^1\times {\mathrm{4421}}^1$

素因数の和:4443

約数の個数: 24

約数和(自身を含む): 12876864

約数和(自身を除く): 5356743

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 4421, 13263, 30947, 39789, 92841, 119367, 278523, 358101, 835569, 1074303, 2506707, 7520121]

約数ペア:

[(1, 7520121), (3, 2506707), (7, 1074303), (9, 835569), (21, 358101), (27, 278523), (63, 119367), (81, 92841), (189, 39789), (243, 30947), (567, 13263), (1701, 4421)]