18115569

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:259

約数の個数: 40

約数和(自身を含む): 29040000

約数和(自身を除く): 10924431

約数列:

[1, 3, 9, 19, 27, 57, 79, 81, 149, 171, 237, 447, 513, 711, 1341, 1501, 1539, 2133, 2831, 4023, 4503, 6399, 8493, 11771, 12069, 13509, 25479, 35313, 40527, 76437, 105939, 121581, 223649, 229311, 317817, 670947, 953451, 2012841, 6038523, 18115569]

約数ペア:

[(1, 18115569), (3, 6038523), (9, 2012841), (19, 953451), (27, 670947), (57, 317817), (79, 229311), (81, 223649), (149, 121581), (171, 105939), (237, 76437), (447, 40527), (513, 35313), (711, 25479), (1341, 13509), (1501, 12069), (1539, 11771), (2133, 8493), (2831, 6399), (4023, 4503)]