21418782

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:246

約数の個数: 96

約数和(自身を含む): 56142720

約数和(自身を除く): 34723938

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 37, 42, 49, 66, 74, 77, 98, 111, 147, 154, 179, 222, 231, 259, 294, 358, 407, 462, 518, 537, 539, 777, 814, 1074, 1078, 1221, 1253, 1554, 1617, 1813, 1969, 2442, 2506, 2849, 3234, 3626, 3759, 3938, 5439, 5698, 5907, 6623, 7518, 8547, 8771, 10878, 11814, 13246, 13783, 17094, 17542, 19869, 19943, 26313, 27566, 39738, 39886, 41349, 46361, 52626, 59829, 72853, 82698, 92722, 96481, 119658, 139083, 145706, 192962, 218559, 278166, 289443, 324527, 437118, 509971, 578886, 649054, 973581, 1019942, 1529913, 1947162, 3059826, 3569797, 7139594, 10709391, 21418782]

約数ペア:

[(1, 21418782), (2, 10709391), (3, 7139594), (6, 3569797), (7, 3059826), (11, 1947162), (14, 1529913), (21, 1019942), (22, 973581), (33, 649054), (37, 578886), (42, 509971), (49, 437118), (66, 324527), (74, 289443), (77, 278166), (98, 218559), (111, 192962), (147, 145706), (154, 139083), (179, 119658), (222, 96481), (231, 92722), (259, 82698), (294, 72853), (358, 59829), (407, 52626), (462, 46361), (518, 41349), (537, 39886), (539, 39738), (777, 27566), (814, 26313), (1074, 19943), (1078, 19869), (1221, 17542), (1253, 17094), (1554, 13783), (1617, 13246), (1813, 11814), (1969, 10878), (2442, 8771), (2506, 8547), (2849, 7518), (3234, 6623), (3626, 5907), (3759, 5698), (3938, 5439)]