20219484961

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{644569}}^1$

素因数の和:644728

約数の個数: 16

約数和(自身を含む): 23101388800

約数和(自身を除く): 2881903839

約数列:

[1, 13, 19, 127, 247, 1651, 2413, 31369, 644569, 8379397, 12246811, 81860263, 159208543, 1064183419, 1555344997, 20219484961]

約数ペア:

[(1, 20219484961), (13, 1555344997), (19, 1064183419), (127, 159208543), (247, 81860263), (1651, 12246811), (2413, 8379397), (31369, 644569)]