204421

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:108

約数の個数: 16

約数和(自身を含む): 259200

約数和(自身を除く): 54779

約数列:

[1, 7, 19, 29, 53, 133, 203, 371, 551, 1007, 1537, 3857, 7049, 10759, 29203, 204421]

約数ペア:

[(1, 204421), (7, 29203), (19, 10759), (29, 7049), (53, 3857), (133, 1537), (203, 1007), (371, 551)]