254251543

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{30703}}^1$

素因数の和:30743

約数の個数: 18

約数和(自身を含む): 320273424

約数和(自身を除く): 66021881

約数列:

[1, 7, 13, 49, 91, 169, 637, 1183, 8281, 30703, 214921, 399139, 1504447, 2793973, 5188807, 19557811, 36321649, 254251543]

約数ペア:

[(1, 254251543), (7, 36321649), (13, 19557811), (49, 5188807), (91, 2793973), (169, 1504447), (637, 399139), (1183, 214921), (8281, 30703)]