1421553

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{487}}^1$

素因数の和:636

約数の個数: 16

約数和(自身を含む): 2186240

約数和(自身を除く): 764687

約数列:

[1, 3, 7, 21, 139, 417, 487, 973, 1461, 2919, 3409, 10227, 67693, 203079, 473851, 1421553]

約数ペア:

[(1, 1421553), (3, 473851), (7, 203079), (21, 67693), (139, 10227), (417, 3409), (487, 2919), (973, 1461)]