81251001

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^2$

素因数の和:330

約数の個数: 36

約数和(自身を含む): 130760812

約数和(自身を除く): 49509811

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 137, 333, 411, 481, 1233, 1443, 1781, 4329, 5069, 5343, 15207, 16029, 18769, 45621, 56307, 65897, 168921, 197691, 243997, 593073, 694453, 731991, 2083359, 2195973, 6250077, 9027889, 27083667, 81251001]

約数ペア:

[(1, 81251001), (3, 27083667), (9, 9027889), (13, 6250077), (37, 2195973), (39, 2083359), (111, 731991), (117, 694453), (137, 593073), (333, 243997), (411, 197691), (481, 168921), (1233, 65897), (1443, 56307), (1781, 45621), (4329, 18769), (5069, 16029), (5343, 15207)]