128877917

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{283}}^1\times {\mathrm{971}}^1$

素因数の和:1328

約数の個数: 16

約数和(自身を含む): 150170112

約数和(自身を除く): 21292195

約数列:

[1, 7, 67, 283, 469, 971, 1981, 6797, 18961, 65057, 132727, 274793, 455399, 1923551, 18411131, 128877917]

約数ペア:

[(1, 128877917), (7, 18411131), (67, 1923551), (283, 455399), (469, 274793), (971, 132727), (1981, 65057), (6797, 18961)]