16925181

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 29514240

約数和(自身を除く): 12589059

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 169, 247, 251, 273, 399, 507, 741, 753, 1183, 1729, 1757, 3211, 3263, 3549, 4769, 5187, 5271, 9633, 9789, 14307, 22477, 22841, 33383, 42419, 61997, 67431, 68523, 100149, 127257, 185991, 296933, 433979, 805961, 890799, 1301937, 2417883, 5641727, 16925181]

約数ペア:

[(1, 16925181), (3, 5641727), (7, 2417883), (13, 1301937), (19, 890799), (21, 805961), (39, 433979), (57, 296933), (91, 185991), (133, 127257), (169, 100149), (247, 68523), (251, 67431), (273, 61997), (399, 42419), (507, 33383), (741, 22841), (753, 22477), (1183, 14307), (1729, 9789), (1757, 9633), (3211, 5271), (3263, 5187), (3549, 4769)]