20457489

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{16921}}^1$

素因数の和:16968

約数の個数: 16

約数和(自身を含む): 30324224

約数和(自身を除く): 9866735

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 16921, 50763, 219973, 524551, 659919, 1573653, 6819163, 20457489]

約数ペア:

[(1, 20457489), (3, 6819163), (13, 1573653), (31, 659919), (39, 524551), (93, 219973), (403, 50763), (1209, 16921)]