208996827

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 342558720

約数和(自身を除く): 133561893

約数列:

[1, 3, 13, 17, 19, 39, 47, 51, 57, 141, 221, 247, 323, 353, 611, 663, 741, 799, 893, 969, 1059, 1833, 2397, 2679, 4199, 4589, 6001, 6707, 10387, 11609, 12597, 13767, 15181, 16591, 18003, 20121, 31161, 34827, 45543, 49773, 78013, 87191, 114019, 197353, 215683, 234039, 261573, 282047, 315229, 342057, 592059, 647049, 846141, 945687, 1482247, 3666611, 4097977, 4446741, 5358893, 10999833, 12293931, 16076679, 69665609, 208996827]

約数ペア:

[(1, 208996827), (3, 69665609), (13, 16076679), (17, 12293931), (19, 10999833), (39, 5358893), (47, 4446741), (51, 4097977), (57, 3666611), (141, 1482247), (221, 945687), (247, 846141), (323, 647049), (353, 592059), (611, 342057), (663, 315229), (741, 282047), (799, 261573), (893, 234039), (969, 215683), (1059, 197353), (1833, 114019), (2397, 87191), (2679, 78013), (4199, 49773), (4589, 45543), (6001, 34827), (6707, 31161), (10387, 20121), (11609, 18003), (12597, 16591), (13767, 15181)]