181505691

素因数分解:

$3^7\times {\mathrm{149}}^1\times {\mathrm{557}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 274536000

約数和(自身を除く): 93030309

約数列:

[1, 3, 9, 27, 81, 149, 243, 447, 557, 729, 1341, 1671, 2187, 4023, 5013, 12069, 15039, 36207, 45117, 82993, 108621, 135351, 248979, 325863, 406053, 746937, 1218159, 2240811, 6722433, 20167299, 60501897, 181505691]

約数ペア:

[(1, 181505691), (3, 60501897), (9, 20167299), (27, 6722433), (81, 2240811), (149, 1218159), (243, 746937), (447, 406053), (557, 325863), (729, 248979), (1341, 135351), (1671, 108621), (2187, 82993), (4023, 45117), (5013, 36207), (12069, 15039)]