7091721

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1237}}^1$

素因数の和:1270

約数の個数: 36

約数和(自身を含む): 12843012

約数和(自身を除く): 5751291

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1237, 1911, 3711, 5733, 8659, 11133, 16081, 25977, 48243, 60613, 77931, 112567, 144729, 181839, 337701, 545517, 787969, 1013103, 2363907, 7091721]

約数ペア:

[(1, 7091721), (3, 2363907), (7, 1013103), (9, 787969), (13, 545517), (21, 337701), (39, 181839), (49, 144729), (63, 112567), (91, 77931), (117, 60613), (147, 48243), (273, 25977), (441, 16081), (637, 11133), (819, 8659), (1237, 5733), (1911, 3711)]