20951331

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{1069}}^1$

素因数の和:1258

約数の個数: 16

約数和(自身を含む): 28761600

約数和(自身を除く): 7810269

約数列:

[1, 3, 47, 139, 141, 417, 1069, 3207, 6533, 19599, 50243, 148591, 150729, 445773, 6983777, 20951331]

約数ペア:

[(1, 20951331), (3, 6983777), (47, 445773), (139, 150729), (141, 148591), (417, 50243), (1069, 19599), (3207, 6533)]