221729079

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{30403}}^1$

素因数の和:30447

約数の個数: 32

約数和(自身を含む): 367766784

約数和(自身を除く): 146037705

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 663, 2431, 7293, 30403, 91209, 334433, 395239, 516851, 1003299, 1185717, 1550553, 4347629, 5685361, 6719063, 13042887, 17056083, 20157189, 73909693, 221729079]

約数ペア:

[(1, 221729079), (3, 73909693), (11, 20157189), (13, 17056083), (17, 13042887), (33, 6719063), (39, 5685361), (51, 4347629), (143, 1550553), (187, 1185717), (221, 1003299), (429, 516851), (561, 395239), (663, 334433), (2431, 91209), (7293, 30403)]