2157402519

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{1401821}}^1$

素因数の和:1401852

約数の個数: 20

約数和(自身を含む): 3392409240

約数和(自身を除く): 1235006721

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 1401821, 4205463, 12616389, 26634599, 37849167, 79903797, 113547501, 239711391, 719134173, 2157402519]

約数ペア:

[(1, 2157402519), (3, 719134173), (9, 239711391), (19, 113547501), (27, 79903797), (57, 37849167), (81, 26634599), (171, 12616389), (513, 4205463), (1539, 1401821)]