20161686987

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13255547}}^1$

素因数の和:13255579

約数の個数: 18

約数和(自身を含む): 31534948692

約数和(自身を除く): 11373261705

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13255547, 39766641, 119299923, 172322111, 516966333, 1550898999, 2240187443, 6720562329, 20161686987]

約数ペア:

[(1, 20161686987), (3, 6720562329), (9, 2240187443), (13, 1550898999), (39, 516966333), (117, 172322111), (169, 119299923), (507, 39766641), (1521, 13255547)]