208728499

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{239}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 261273600

約数和(自身を除く): 52545101

約数列:

[1, 7, 17, 41, 119, 179, 239, 287, 697, 1253, 1673, 3043, 4063, 4879, 7339, 9799, 21301, 28441, 42781, 51373, 68593, 124763, 166583, 299467, 727277, 873341, 1166081, 1754021, 5090939, 12278147, 29818357, 208728499]

約数ペア:

[(1, 208728499), (7, 29818357), (17, 12278147), (41, 5090939), (119, 1754021), (179, 1166081), (239, 873341), (287, 727277), (697, 299467), (1253, 166583), (1673, 124763), (3043, 68593), (4063, 51373), (4879, 42781), (7339, 28441), (9799, 21301)]