137908981

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{353}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 173318400

約数和(自身を除く): 35409419

約数列:

[1, 7, 17, 49, 67, 119, 343, 353, 469, 833, 1139, 2471, 3283, 5831, 6001, 7973, 17297, 22981, 23651, 42007, 55811, 121079, 165557, 294049, 390677, 402067, 1158899, 2058343, 2814469, 8112293, 19701283, 137908981]

約数ペア:

[(1, 137908981), (7, 19701283), (17, 8112293), (49, 2814469), (67, 2058343), (119, 1158899), (343, 402067), (353, 390677), (469, 294049), (833, 165557), (1139, 121079), (2471, 55811), (3283, 42007), (5831, 23651), (6001, 22981), (7973, 17297)]