21291137283

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{1697}}^1$

素因数の和:2004

約数の個数: 64

約数和(自身を含む): 32533788672

約数和(自身を除く): 11242651389

約数列:

[1, 3, 13, 23, 39, 69, 71, 197, 213, 299, 591, 897, 923, 1633, 1697, 2561, 2769, 4531, 4899, 5091, 7683, 13593, 13987, 21229, 22061, 39031, 41961, 58903, 63687, 66183, 117093, 120487, 176709, 181831, 321701, 334309, 361461, 507403, 545493, 965103, 1002927, 1522209, 1566331, 2771201, 4182113, 4346017, 4698993, 7689107, 8313603, 12546339, 13038051, 23067321, 23735939, 36025613, 71207817, 99958391, 108076839, 299875173, 308567207, 545926597, 925701621, 1637779791, 7097045761, 21291137283]

約数ペア:

[(1, 21291137283), (3, 7097045761), (13, 1637779791), (23, 925701621), (39, 545926597), (69, 308567207), (71, 299875173), (197, 108076839), (213, 99958391), (299, 71207817), (591, 36025613), (897, 23735939), (923, 23067321), (1633, 13038051), (1697, 12546339), (2561, 8313603), (2769, 7689107), (4531, 4698993), (4899, 4346017), (5091, 4182113), (7683, 2771201), (13593, 1566331), (13987, 1522209), (21229, 1002927), (22061, 965103), (39031, 545493), (41961, 507403), (58903, 361461), (63687, 334309), (66183, 321701), (117093, 181831), (120487, 176709)]