20786835

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81517}}^1$

素因数の和:81542

約数の個数: 16

約数和(自身を含む): 35215776

約数和(自身を除く): 14428941

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 81517, 244551, 407585, 1222755, 1385789, 4157367, 6928945, 20786835]

約数ペア:

[(1, 20786835), (3, 6928945), (5, 4157367), (15, 1385789), (17, 1222755), (51, 407585), (85, 244551), (255, 81517)]