189387991

素因数分解:

${\mathrm{13}}^4\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:420

約数の個数: 20

約数和(自身を含む): 216587000

約数和(自身を除く): 27199009

約数列:

[1, 13, 19, 169, 247, 349, 2197, 3211, 4537, 6631, 28561, 41743, 58981, 86203, 542659, 766753, 1120639, 9967789, 14568307, 189387991]

約数ペア:

[(1, 189387991), (13, 14568307), (19, 9967789), (169, 1120639), (247, 766753), (349, 542659), (2197, 86203), (3211, 58981), (4537, 41743), (6631, 28561)]