208607301

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 352684800

約数和(自身を除く): 144077499

約数列:

[1, 3, 7, 9, 21, 63, 71, 149, 213, 313, 447, 497, 639, 939, 1043, 1341, 1491, 2191, 2817, 3129, 4473, 6573, 9387, 10579, 19719, 22223, 31737, 46637, 66669, 74053, 95211, 139911, 155561, 200007, 222159, 326459, 419733, 466683, 666477, 979377, 1400049, 2938131, 3311227, 9933681, 23178589, 29801043, 69535767, 208607301]

約数ペア:

[(1, 208607301), (3, 69535767), (7, 29801043), (9, 23178589), (21, 9933681), (63, 3311227), (71, 2938131), (149, 1400049), (213, 979377), (313, 666477), (447, 466683), (497, 419733), (639, 326459), (939, 222159), (1043, 200007), (1341, 155561), (1491, 139911), (2191, 95211), (2817, 74053), (3129, 66669), (4473, 46637), (6573, 31737), (9387, 22223), (10579, 19719)]