18477998

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:369

約数の個数: 48

約数和(自身を含む): 35877168

約数和(自身を除く): 17399170

約数列:

[1, 2, 7, 11, 14, 22, 49, 61, 77, 98, 122, 154, 281, 427, 539, 562, 671, 854, 1078, 1342, 1967, 2989, 3091, 3934, 4697, 5978, 6182, 9394, 13769, 17141, 21637, 27538, 32879, 34282, 43274, 65758, 119987, 151459, 188551, 239974, 302918, 377102, 839909, 1319857, 1679818, 2639714, 9238999, 18477998]

約数ペア:

[(1, 18477998), (2, 9238999), (7, 2639714), (11, 1679818), (14, 1319857), (22, 839909), (49, 377102), (61, 302918), (77, 239974), (98, 188551), (122, 151459), (154, 119987), (281, 65758), (427, 43274), (539, 34282), (562, 32879), (671, 27538), (854, 21637), (1078, 17141), (1342, 13769), (1967, 9394), (2989, 6182), (3091, 5978), (3934, 4697)]