18788756

素因数分解:

$2^2\times 7^2\times {\mathrm{257}}^1\times {\mathrm{373}}^1$

素因数の和:648

約数の個数: 36

約数和(自身を含む): 38500308

約数和(自身を除く): 19711552

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 257, 373, 514, 746, 1028, 1492, 1799, 2611, 3598, 5222, 7196, 10444, 12593, 18277, 25186, 36554, 50372, 73108, 95861, 191722, 383444, 671027, 1342054, 2684108, 4697189, 9394378, 18788756]

約数ペア:

[(1, 18788756), (2, 9394378), (4, 4697189), (7, 2684108), (14, 1342054), (28, 671027), (49, 383444), (98, 191722), (196, 95861), (257, 73108), (373, 50372), (514, 36554), (746, 25186), (1028, 18277), (1492, 12593), (1799, 10444), (2611, 7196), (3598, 5222)]