258419

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:122

約数の個数: 16

約数和(自身を含む): 326400

約数和(自身を除く): 67981

約数列:

[1, 7, 19, 29, 67, 133, 203, 469, 551, 1273, 1943, 3857, 8911, 13601, 36917, 258419]

約数ペア:

[(1, 258419), (7, 36917), (19, 13601), (29, 8911), (67, 3857), (133, 1943), (203, 1273), (469, 551)]