1949368421

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 2800482048

約数和(自身を除く): 851113627

約数列:

[1, 7, 11, 13, 37, 49, 73, 77, 91, 103, 143, 259, 407, 481, 511, 539, 637, 721, 803, 949, 1001, 1133, 1339, 1813, 2701, 2849, 3367, 3577, 3811, 5047, 5291, 5621, 6643, 7007, 7519, 7931, 9373, 10439, 14729, 18907, 19943, 23569, 26677, 29711, 35113, 37037, 39347, 41921, 46501, 49543, 52633, 55517, 65611, 73073, 82709, 97747, 103103, 132349, 186739, 207977, 245791, 259259, 278203, 293447, 346801, 368431, 386243, 511511, 544973, 578963, 684229, 721721, 1075217, 1455839, 1720537, 1947421, 2054129, 2427607, 2703701, 3060233, 3616639, 3814811, 4052741, 4789603, 7526519, 13631947, 18925907, 21421631, 25316473, 26703677, 39783029, 52685633, 149951417, 177215311, 278481203, 1949368421]

約数ペア:

[(1, 1949368421), (7, 278481203), (11, 177215311), (13, 149951417), (37, 52685633), (49, 39783029), (73, 26703677), (77, 25316473), (91, 21421631), (103, 18925907), (143, 13631947), (259, 7526519), (407, 4789603), (481, 4052741), (511, 3814811), (539, 3616639), (637, 3060233), (721, 2703701), (803, 2427607), (949, 2054129), (1001, 1947421), (1133, 1720537), (1339, 1455839), (1813, 1075217), (2701, 721721), (2849, 684229), (3367, 578963), (3577, 544973), (3811, 511511), (5047, 386243), (5291, 368431), (5621, 346801), (6643, 293447), (7007, 278203), (7519, 259259), (7931, 245791), (9373, 207977), (10439, 186739), (14729, 132349), (18907, 103103), (19943, 97747), (23569, 82709), (26677, 73073), (29711, 65611), (35113, 55517), (37037, 52633), (39347, 49543), (41921, 46501)]