19922487

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 30643200

約数和(自身を除く): 10720713

約数列:

[1, 3, 13, 17, 39, 51, 151, 199, 221, 453, 597, 663, 1963, 2567, 2587, 3383, 5889, 7701, 7761, 10149, 30049, 33371, 43979, 90147, 100113, 131937, 390637, 510833, 1171911, 1532499, 6640829, 19922487]

約数ペア:

[(1, 19922487), (3, 6640829), (13, 1532499), (17, 1171911), (39, 510833), (51, 390637), (151, 131937), (199, 100113), (221, 90147), (453, 43979), (597, 33371), (663, 30049), (1963, 10149), (2567, 7761), (2587, 7701), (3383, 5889)]