1557100391

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 2130315264

約数和(自身を除く): 573214873

約数列:

[1, 7, 11, 23, 43, 49, 77, 127, 161, 253, 301, 473, 529, 539, 889, 989, 1127, 1397, 1771, 2107, 2921, 3311, 3703, 5461, 5819, 6223, 6923, 9779, 10879, 12397, 20447, 22747, 23177, 25921, 32131, 38227, 40733, 48461, 60071, 67183, 68453, 76153, 125603, 143129, 159229, 224917, 250217, 267589, 285131, 420497, 470281, 533071, 739013, 879221, 1114603, 1381633, 1574419, 1751519, 2888869, 2943479, 3291967, 5173091, 6154547, 9671431, 12260633, 20222083, 31777559, 36211637, 67700017, 141554581, 222442913, 1557100391]

約数ペア:

[(1, 1557100391), (7, 222442913), (11, 141554581), (23, 67700017), (43, 36211637), (49, 31777559), (77, 20222083), (127, 12260633), (161, 9671431), (253, 6154547), (301, 5173091), (473, 3291967), (529, 2943479), (539, 2888869), (889, 1751519), (989, 1574419), (1127, 1381633), (1397, 1114603), (1771, 879221), (2107, 739013), (2921, 533071), (3311, 470281), (3703, 420497), (5461, 285131), (5819, 267589), (6223, 250217), (6923, 224917), (9779, 159229), (10879, 143129), (12397, 125603), (20447, 76153), (22747, 68453), (23177, 67183), (25921, 60071), (32131, 48461), (38227, 40733)]