1990905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{283}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 3707904

約数和(自身を除く): 1716999

約数列:

[1, 3, 5, 7, 15, 21, 35, 67, 105, 201, 283, 335, 469, 849, 1005, 1407, 1415, 1981, 2345, 4245, 5943, 7035, 9905, 18961, 29715, 56883, 94805, 132727, 284415, 398181, 663635, 1990905]

約数ペア:

[(1, 1990905), (3, 663635), (5, 398181), (7, 284415), (15, 132727), (21, 94805), (35, 56883), (67, 29715), (105, 18961), (201, 9905), (283, 7035), (335, 5943), (469, 4245), (849, 2345), (1005, 1981), (1407, 1415)]