21602805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{727}}^1$

素因数の和:1025

約数の個数: 32

約数和(自身を含む): 39696384

約数和(自身を除く): 18093579

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 283, 727, 849, 1415, 1981, 2181, 3635, 4245, 5089, 5943, 9905, 10905, 15267, 25445, 29715, 76335, 205741, 617223, 1028705, 1440187, 3086115, 4320561, 7200935, 21602805]

約数ペア:

[(1, 21602805), (3, 7200935), (5, 4320561), (7, 3086115), (15, 1440187), (21, 1028705), (35, 617223), (105, 205741), (283, 76335), (727, 29715), (849, 25445), (1415, 15267), (1981, 10905), (2181, 9905), (3635, 5943), (4245, 5089)]