20970702

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:409

約数の個数: 48

約数和(自身を含む): 47005920

約数和(自身を除く): 26035218

約数列:

[1, 2, 3, 6, 9, 18, 61, 71, 122, 142, 183, 213, 269, 366, 426, 538, 549, 639, 807, 1098, 1278, 1614, 2421, 4331, 4842, 8662, 12993, 16409, 19099, 25986, 32818, 38198, 38979, 49227, 57297, 77958, 98454, 114594, 147681, 171891, 295362, 343782, 1165039, 2330078, 3495117, 6990234, 10485351, 20970702]

約数ペア:

[(1, 20970702), (2, 10485351), (3, 6990234), (6, 3495117), (9, 2330078), (18, 1165039), (61, 343782), (71, 295362), (122, 171891), (142, 147681), (183, 114594), (213, 98454), (269, 77958), (366, 57297), (426, 49227), (538, 38979), (549, 38198), (639, 32818), (807, 25986), (1098, 19099), (1278, 16409), (1614, 12993), (2421, 8662), (4331, 4842)]