18989656

素因数分解:

$2^3\times 7^2\times {\mathrm{193}}^1\times {\mathrm{251}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 41799240

約数和(自身を除く): 22809584

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 193, 196, 251, 386, 392, 502, 772, 1004, 1351, 1544, 1757, 2008, 2702, 3514, 5404, 7028, 9457, 10808, 12299, 14056, 18914, 24598, 37828, 48443, 49196, 75656, 96886, 98392, 193772, 339101, 387544, 678202, 1356404, 2373707, 2712808, 4747414, 9494828, 18989656]

約数ペア:

[(1, 18989656), (2, 9494828), (4, 4747414), (7, 2712808), (8, 2373707), (14, 1356404), (28, 678202), (49, 387544), (56, 339101), (98, 193772), (193, 98392), (196, 96886), (251, 75656), (386, 49196), (392, 48443), (502, 37828), (772, 24598), (1004, 18914), (1351, 14056), (1544, 12299), (1757, 10808), (2008, 9457), (2702, 7028), (3514, 5404)]