15315561

素因数分解:

$3^7\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 23616000

約数和(自身を除く): 8300439

約数列:

[1, 3, 9, 27, 47, 81, 141, 149, 243, 423, 447, 729, 1269, 1341, 2187, 3807, 4023, 7003, 11421, 12069, 21009, 34263, 36207, 63027, 102789, 108621, 189081, 325863, 567243, 1701729, 5105187, 15315561]

約数ペア:

[(1, 15315561), (3, 5105187), (9, 1701729), (27, 567243), (47, 325863), (81, 189081), (141, 108621), (149, 102789), (243, 63027), (423, 36207), (447, 34263), (729, 21009), (1269, 12069), (1341, 11421), (2187, 7003), (3807, 4023)]