2172387

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:159

約数の個数: 32

約数和(自身を含む): 3538944

約数和(自身を除く): 1366557

約数列:

[1, 3, 7, 21, 31, 47, 71, 93, 141, 213, 217, 329, 497, 651, 987, 1457, 1491, 2201, 3337, 4371, 6603, 10011, 10199, 15407, 23359, 30597, 46221, 70077, 103447, 310341, 724129, 2172387]

約数ペア:

[(1, 2172387), (3, 724129), (7, 310341), (21, 103447), (31, 70077), (47, 46221), (71, 30597), (93, 23359), (141, 15407), (213, 10199), (217, 10011), (329, 6603), (497, 4371), (651, 3337), (987, 2201), (1457, 1491)]