19955166

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{919}}^1$

素因数の和:989

約数の個数: 64

約数和(自身を含む): 50872320

約数和(自身を除く): 30917154

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 47, 66, 77, 94, 141, 154, 231, 282, 329, 462, 517, 658, 919, 987, 1034, 1551, 1838, 1974, 2757, 3102, 3619, 5514, 6433, 7238, 10109, 10857, 12866, 19299, 20218, 21714, 30327, 38598, 43193, 60654, 70763, 86386, 129579, 141526, 212289, 259158, 302351, 424578, 475123, 604702, 907053, 950246, 1425369, 1814106, 2850738, 3325861, 6651722, 9977583, 19955166]

約数ペア:

[(1, 19955166), (2, 9977583), (3, 6651722), (6, 3325861), (7, 2850738), (11, 1814106), (14, 1425369), (21, 950246), (22, 907053), (33, 604702), (42, 475123), (47, 424578), (66, 302351), (77, 259158), (94, 212289), (141, 141526), (154, 129579), (231, 86386), (282, 70763), (329, 60654), (462, 43193), (517, 38598), (658, 30327), (919, 21714), (987, 20218), (1034, 19299), (1551, 12866), (1838, 10857), (1974, 10109), (2757, 7238), (3102, 6433), (3619, 5514)]