217612871

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{5701}}^1$

素因数の和:5775

約数の個数: 24

約数和(自身を含む): 273011760

約数和(自身を除く): 55398889

約数列:

[1, 7, 19, 41, 49, 133, 287, 779, 931, 2009, 5453, 5701, 38171, 39907, 108319, 233741, 279349, 758233, 1636187, 4441079, 5307631, 11453309, 31087553, 217612871]

約数ペア:

[(1, 217612871), (7, 31087553), (19, 11453309), (41, 5307631), (49, 4441079), (133, 1636187), (287, 758233), (779, 279349), (931, 233741), (2009, 108319), (5453, 39907), (5701, 38171)]