20997399231

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{283}}^1\times {\mathrm{4603}}^1$

素因数の和:5097

約数の個数: 40

約数和(自身を含む): 31642371200

約数和(自身を除く): 10644971969

約数列:

[1, 3, 9, 27, 81, 199, 283, 597, 849, 1791, 2547, 4603, 5373, 7641, 13809, 16119, 22923, 41427, 56317, 124281, 168951, 372843, 506853, 915997, 1302649, 1520559, 2747991, 3907947, 4561677, 8243973, 11723841, 24731919, 35171523, 74195757, 105514569, 259227151, 777681453, 2333044359, 6999133077, 20997399231]

約数ペア:

[(1, 20997399231), (3, 6999133077), (9, 2333044359), (27, 777681453), (81, 259227151), (199, 105514569), (283, 74195757), (597, 35171523), (849, 24731919), (1791, 11723841), (2547, 8243973), (4603, 4561677), (5373, 3907947), (7641, 2747991), (13809, 1520559), (16119, 1302649), (22923, 915997), (41427, 506853), (56317, 372843), (124281, 168951)]