20117715

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78893}}^1$

素因数の和:78918

約数の個数: 16

約数和(自身を含む): 34082208

約数和(自身を除く): 13964493

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 78893, 236679, 394465, 1183395, 1341181, 4023543, 6705905, 20117715]

約数ペア:

[(1, 20117715), (3, 6705905), (5, 4023543), (15, 1341181), (17, 1183395), (51, 394465), (85, 236679), (255, 78893)]