207971709

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{2399}}^1$

素因数の和:2521

約数の個数: 32

約数和(自身を含む): 315187200

約数和(自身を除く): 107215491

約数列:

[1, 3, 11, 33, 37, 71, 111, 213, 407, 781, 1221, 2343, 2399, 2627, 7197, 7881, 26389, 28897, 79167, 86691, 88763, 170329, 266289, 510987, 976393, 1873619, 2929179, 5620857, 6302173, 18906519, 69323903, 207971709]

約数ペア:

[(1, 207971709), (3, 69323903), (11, 18906519), (33, 6302173), (37, 5620857), (71, 2929179), (111, 1873619), (213, 976393), (407, 510987), (781, 266289), (1221, 170329), (2343, 88763), (2399, 86691), (2627, 79167), (7197, 28897), (7881, 26389)]