515041821

素因数分解:

$3^4\times 7^1\times {\mathrm{908363}}^1$

素因数の和:908382

約数の個数: 20

約数和(自身を含む): 879296352

約数和(自身を除く): 364254531

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 908363, 2725089, 6358541, 8175267, 19075623, 24525801, 57226869, 73577403, 171680607, 515041821]

約数ペア:

[(1, 515041821), (3, 171680607), (7, 73577403), (9, 57226869), (21, 24525801), (27, 19075623), (63, 8175267), (81, 6358541), (189, 2725089), (567, 908363)]