208297986

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{10391}}^1$

素因数の和:10666

約数の個数: 32

約数和(自身を含む): 450430848

約数和(自身を除く): 242132862

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 257, 514, 771, 1542, 3341, 6682, 10023, 10391, 20046, 20782, 31173, 62346, 135083, 270166, 405249, 810498, 2670487, 5340974, 8011461, 16022922, 34716331, 69432662, 104148993, 208297986]

約数ペア:

[(1, 208297986), (2, 104148993), (3, 69432662), (6, 34716331), (13, 16022922), (26, 8011461), (39, 5340974), (78, 2670487), (257, 810498), (514, 405249), (771, 270166), (1542, 135083), (3341, 62346), (6682, 31173), (10023, 20782), (10391, 20046)]