21060445

素因数分解:

$5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1283}}^1$

素因数の和:1369

約数の個数: 24

約数和(自身を含む): 29860704

約数和(自身を除く): 8800259

約数列:

[1, 5, 7, 35, 49, 67, 245, 335, 469, 1283, 2345, 3283, 6415, 8981, 16415, 44905, 62867, 85961, 314335, 429805, 601727, 3008635, 4212089, 21060445]

約数ペア:

[(1, 21060445), (5, 4212089), (7, 3008635), (35, 601727), (49, 429805), (67, 314335), (245, 85961), (335, 62867), (469, 44905), (1283, 16415), (2345, 8981), (3283, 6415)]