278988479

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{213131}}^1$

素因数の和:213166

約数の個数: 16

約数和(自身を含む): 368292096

約数和(自身を除く): 89303617

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 213131, 1491917, 2344441, 3623227, 16411087, 25362589, 39855497, 278988479]

約数ペア:

[(1, 278988479), (7, 39855497), (11, 25362589), (17, 16411087), (77, 3623227), (119, 2344441), (187, 1491917), (1309, 213131)]