978257

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:176

約数の個数: 16

約数和(自身を含む): 1190400

約数和(自身を除く): 212143

約数列:

[1, 7, 29, 61, 79, 203, 427, 553, 1769, 2291, 4819, 12383, 16037, 33733, 139751, 978257]

約数ペア:

[(1, 978257), (7, 139751), (29, 33733), (61, 16037), (79, 12383), (203, 4819), (427, 2291), (553, 1769)]