21031396078

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1259}}^1\times {\mathrm{1619}}^1$

素因数の和:2965

約数の個数: 64

約数和(自身を含む): 39974860800

約数和(自身を除く): 18943464722

約数列:

[1, 2, 7, 11, 14, 22, 67, 77, 134, 154, 469, 737, 938, 1259, 1474, 1619, 2518, 3238, 5159, 8813, 10318, 11333, 13849, 17626, 17809, 22666, 27698, 35618, 84353, 96943, 108473, 124663, 168706, 193886, 216946, 249326, 590471, 759311, 927883, 1180942, 1193203, 1518622, 1855766, 2038321, 2386406, 4076642, 6495181, 8352421, 12990362, 14268247, 16704842, 22421531, 28536494, 44843062, 136567507, 156950717, 273135014, 313901434, 955972549, 1502242577, 1911945098, 3004485154, 10515698039, 21031396078]

約数ペア:

[(1, 21031396078), (2, 10515698039), (7, 3004485154), (11, 1911945098), (14, 1502242577), (22, 955972549), (67, 313901434), (77, 273135014), (134, 156950717), (154, 136567507), (469, 44843062), (737, 28536494), (938, 22421531), (1259, 16704842), (1474, 14268247), (1619, 12990362), (2518, 8352421), (3238, 6495181), (5159, 4076642), (8813, 2386406), (10318, 2038321), (11333, 1855766), (13849, 1518622), (17626, 1193203), (17809, 1180942), (22666, 927883), (27698, 759311), (35618, 590471), (84353, 249326), (96943, 216946), (108473, 193886), (124663, 168706)]