17939628

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{277}}^1$

素因数の和:551

約数の個数: 72

約数和(自身を含む): 52215072

約数和(自身を除く): 34275444

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 257, 277, 514, 554, 771, 831, 1028, 1108, 1542, 1662, 1799, 1939, 2313, 2493, 3084, 3324, 3598, 3878, 4626, 4986, 5397, 5817, 7196, 7756, 9252, 9972, 10794, 11634, 16191, 17451, 21588, 23268, 32382, 34902, 64764, 69804, 71189, 142378, 213567, 284756, 427134, 498323, 640701, 854268, 996646, 1281402, 1494969, 1993292, 2562804, 2989938, 4484907, 5979876, 8969814, 17939628]

約数ペア:

[(1, 17939628), (2, 8969814), (3, 5979876), (4, 4484907), (6, 2989938), (7, 2562804), (9, 1993292), (12, 1494969), (14, 1281402), (18, 996646), (21, 854268), (28, 640701), (36, 498323), (42, 427134), (63, 284756), (84, 213567), (126, 142378), (252, 71189), (257, 69804), (277, 64764), (514, 34902), (554, 32382), (771, 23268), (831, 21588), (1028, 17451), (1108, 16191), (1542, 11634), (1662, 10794), (1799, 9972), (1939, 9252), (2313, 7756), (2493, 7196), (3084, 5817), (3324, 5397), (3598, 4986), (3878, 4626)]