2019905181

素因数分解:

$3^6\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:378

約数の個数: 112

約数和(自身を含む): 3701859840

約数和(自身を除く): 1681954659

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 83, 133, 171, 189, 243, 249, 251, 399, 513, 567, 581, 729, 747, 753, 1197, 1539, 1577, 1701, 1743, 1757, 2241, 2259, 3591, 4617, 4731, 4769, 5103, 5229, 5271, 6723, 6777, 10773, 11039, 13851, 14193, 14307, 15687, 15813, 20169, 20331, 20833, 32319, 33117, 33383, 42579, 42921, 47061, 47439, 60507, 60993, 62499, 96957, 99351, 100149, 127737, 128763, 141183, 142317, 145831, 182979, 187497, 298053, 300447, 383211, 386289, 395827, 423549, 426951, 437493, 562491, 894159, 901341, 1149633, 1158867, 1187481, 1280853, 1312479, 1687473, 2682477, 2704023, 2770789, 3476601, 3562443, 3937437, 5062419, 8047431, 8112069, 8312367, 10687329, 11812311, 15187257, 24336207, 24937101, 32061987, 35436933, 74811303, 96185961, 106310799, 224433909, 288557883, 673301727, 2019905181]

約数ペア:

[(1, 2019905181), (3, 673301727), (7, 288557883), (9, 224433909), (19, 106310799), (21, 96185961), (27, 74811303), (57, 35436933), (63, 32061987), (81, 24937101), (83, 24336207), (133, 15187257), (171, 11812311), (189, 10687329), (243, 8312367), (249, 8112069), (251, 8047431), (399, 5062419), (513, 3937437), (567, 3562443), (581, 3476601), (729, 2770789), (747, 2704023), (753, 2682477), (1197, 1687473), (1539, 1312479), (1577, 1280853), (1701, 1187481), (1743, 1158867), (1757, 1149633), (2241, 901341), (2259, 894159), (3591, 562491), (4617, 437493), (4731, 426951), (4769, 423549), (5103, 395827), (5229, 386289), (5271, 383211), (6723, 300447), (6777, 298053), (10773, 187497), (11039, 182979), (13851, 145831), (14193, 142317), (14307, 141183), (15687, 128763), (15813, 127737), (20169, 100149), (20331, 99351), (20833, 96957), (32319, 62499), (33117, 60993), (33383, 60507), (42579, 47439), (42921, 47061)]