217570199

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2341}}^1$

素因数の和:2447

約数の個数: 32

約数和(自身を含む): 291382272

約数和(自身を除く): 73812073

約数列:

[1, 7, 11, 17, 71, 77, 119, 187, 497, 781, 1207, 1309, 2341, 5467, 8449, 13277, 16387, 25751, 39797, 92939, 166211, 180257, 278579, 437767, 1163477, 1828321, 2825587, 3064369, 12798247, 19779109, 31081457, 217570199]

約数ペア:

[(1, 217570199), (7, 31081457), (11, 19779109), (17, 12798247), (71, 3064369), (77, 2825587), (119, 1828321), (187, 1163477), (497, 437767), (781, 278579), (1207, 180257), (1309, 166211), (2341, 92939), (5467, 39797), (8449, 25751), (13277, 16387)]