2017702305

素因数分解:

$3^4\times 5^1\times {\mathrm{4981981}}^1$

素因数の和:4981998

約数の個数: 20

約数和(自身を含む): 3616918932

約数和(自身を除く): 1599216627

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4981981, 14945943, 24909905, 44837829, 74729715, 134513487, 224189145, 403540461, 672567435, 2017702305]

約数ペア:

[(1, 2017702305), (3, 672567435), (5, 403540461), (9, 224189145), (15, 134513487), (27, 74729715), (45, 44837829), (81, 24909905), (135, 14945943), (405, 4981981)]